chore(deps): update dependency com.google.cloud:google-cloud-spanner to v6.47.0 (#2571)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-spanner](https://togithub.com/googleapis/java-spanner) | `6.44.0` -> `6.47.0` | [![age](https://developer.mend.io/api/mc/badges/age/maven/com.google.cloud:google-cloud-spanner/6.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/com.google.cloud:google-cloud-spanner/6.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/com.google.cloud:google-cloud-spanner/6.44.0/6.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/com.google.cloud:google-cloud-spanner/6.44.0/6.47.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>googleapis/java-spanner (com.google.cloud:google-cloud-spanner)</summary>

### [`v6.47.0`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6470-2023-09-12)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.46.0...v6.47.0)

##### Features

-   Add devcontainers for enabling github codespaces usage. ([#&#8203;2605](https://togithub.com/googleapis/java-spanner/issues/2605)) ([a7d60f1](https://togithub.com/googleapis/java-spanner/commit/a7d60f13781f87054a1631ca511492c5c8334751))
-   Disable dynamic code loading properties by default ([#&#8203;2606](https://togithub.com/googleapis/java-spanner/issues/2606)) ([d855ebb](https://togithub.com/googleapis/java-spanner/commit/d855ebbd2dec11cdd6cdbe326de81115632598cd))

##### Bug Fixes

-   Add reflection configurations for com.google.rpc classes ([#&#8203;2617](https://togithub.com/googleapis/java-spanner/issues/2617)) ([c42460a](https://togithub.com/googleapis/java-spanner/commit/c42460ae7b6bb5874cc18c7aecff34186dcbff2a))
-   Avoid unbalanced session pool creation ([#&#8203;2442](https://togithub.com/googleapis/java-spanner/issues/2442)) ([db751ce](https://togithub.com/googleapis/java-spanner/commit/db751ceebc8b6981d00cd07ce4742196cc1dd50d))

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.15.0 ([#&#8203;2615](https://togithub.com/googleapis/java-spanner/issues/2615)) ([ac762fb](https://togithub.com/googleapis/java-spanner/commit/ac762fbf079db79eab5f2ebee971b850ac89eb11))

### [`v6.46.0`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6460-2023-09-06)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.45.3...v6.46.0)

##### Features

-   Adding support for databoost ([#&#8203;2505](https://togithub.com/googleapis/java-spanner/issues/2505)) ([dd3e9a0](https://togithub.com/googleapis/java-spanner/commit/dd3e9a0fe4846edcab9501b71c3d9e0fa24ed75b))
-   Support PostgreSQL for autoConfigEmulator ([#&#8203;2601](https://togithub.com/googleapis/java-spanner/issues/2601)) ([fbf1df9](https://togithub.com/googleapis/java-spanner/commit/fbf1df9f3fb12faaead8634b88fd4843cbdedf5b))

##### Bug Fixes

-   Fix kokoro windows java8 ci ([#&#8203;2573](https://togithub.com/googleapis/java-spanner/issues/2573)) ([465df7b](https://togithub.com/googleapis/java-spanner/commit/465df7bad12fbea7dbcf6dbabb1b29d088c42665))

##### Documentation

-   Add sample for transaction timeouts ([#&#8203;2599](https://togithub.com/googleapis/java-spanner/issues/2599)) ([59cec9b](https://togithub.com/googleapis/java-spanner/commit/59cec9b9cdad169bd8de8ab7b264b04150dda7fb))

### [`v6.45.3`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6453-2023-08-17)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.45.2...v6.45.3)

##### Bug Fixes

-   Use streaming read/query settings for stream retry ([#&#8203;2579](https://togithub.com/googleapis/java-spanner/issues/2579)) ([f78b838](https://togithub.com/googleapis/java-spanner/commit/f78b838e294f9c29bfc34a5d964933657b70417f))

### [`v6.45.2`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6452-2023-08-14)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.45.1...v6.45.2)

##### Bug Fixes

-   GetColumnCount would fail for empty partititioned result sets ([#&#8203;2588](https://togithub.com/googleapis/java-spanner/issues/2588)) ([9a2f3fc](https://togithub.com/googleapis/java-spanner/commit/9a2f3fc01748224fc8084fbf2b4a0223426b1603))

### [`v6.45.1`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6451-2023-08-11)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.45.0...v6.45.1)

##### Bug Fixes

-   Always allow metadata queries ([#&#8203;2580](https://togithub.com/googleapis/java-spanner/issues/2580)) ([ebb17fc](https://togithub.com/googleapis/java-spanner/commit/ebb17fc8aeac5fc75e4f135f33dba970f2480585))

### [`v6.45.0`](https://togithub.com/googleapis/java-spanner/blob/HEAD/CHANGELOG.md#6450-2023-08-04)

[Compare Source](https://togithub.com/googleapis/java-spanner/compare/v6.44.0...v6.45.0)

##### Features

-   Enable leader aware routing by default in Connection API. This enables its use in the JDBC driver and PGAdapter. The update contains performance optimisations that will reduce the latency of read/write transactions that originate from a region other than the default leader region. ([2a85446](https://togithub.com/googleapis/java-spanner/commit/2a85446b162b006ce84a86285af1767c879b27ed))
-   Enable leader aware routing by default. This update contains performance optimisations that will reduce the latency of read/write transactions that originate from a region other than the default leader region. ([441c1b0](https://togithub.com/googleapis/java-spanner/commit/441c1b03c3e976c6304a99fefd93b5c4291e5364))
-   Long running transaction clean up background task. Adding configuration options for closing inactive transactions. ([#&#8203;2419](https://togithub.com/googleapis/java-spanner/issues/2419)) ([423e1a4](https://togithub.com/googleapis/java-spanner/commit/423e1a4b483798d9683ff9bd232b53d76e09beb0))
-   Support partitioned queries + data boost in Connection API ([#&#8203;2540](https://togithub.com/googleapis/java-spanner/issues/2540)) ([4e31d04](https://togithub.com/googleapis/java-spanner/commit/4e31d046f5d80abe8876a729ddba045c70f3261d))

##### Bug Fixes

-   Apply stream wait timeout ([#&#8203;2544](https://togithub.com/googleapis/java-spanner/issues/2544)) ([5a12cd2](https://togithub.com/googleapis/java-spanner/commit/5a12cd29601253423c5738be5471a036fd0334be))

##### Dependencies

-   Update dependency com.google.cloud:google-cloud-shared-dependencies to v3.14.0 ([#&#8203;2562](https://togithub.com/googleapis/java-spanner/issues/2562)) ([dbd5c75](https://togithub.com/googleapis/java-spanner/commit/dbd5c75be39262003092ff4a925ed470cc45f8be))
-   Update dependency org.openjdk.jmh:jmh-core to v1.37 ([#&#8203;2565](https://togithub.com/googleapis/java-spanner/issues/2565)) ([d5c36bf](https://togithub.com/googleapis/java-spanner/commit/d5c36bfbb67ecb14854944779da6e4dbd93f3559))
-   Update dependency org.openjdk.jmh:jmh-generator-annprocess to v1.37 ([#&#8203;2566](https://togithub.com/googleapis/java-spanner/issues/2566)) ([73e92d4](https://togithub.com/googleapis/java-spanner/commit/73e92d42fe6d334b6efa6485246dc67858adb0a9))

</details>

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README.md

@@ -42,7 +42,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-spanner</artifactId>
-  <version>6.44.0</version>
+  <version>6.47.0</version>
 </dependency>
 
 ```

samples/install-without-bom/pom.xml

@@ -32,7 +32,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-spanner</artifactId>
-      <version>6.44.0</version>
+      <version>6.47.0</version>
     </dependency>
     <!-- [END spanner_install_without_bom] -->