deps: update dependency com.google.cloud:google-cloud-core to v2.8.10 (#988)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-core](https://togithub.com/googleapis/java-core) | `2.8.9` -> `2.8.10` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.10/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.10/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.10/compatibility-slim/2.8.9)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-core/2.8.10/confidence-slim/2.8.9)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>googleapis/java-core</summary>

### [`v2.8.10`](https://togithub.com/googleapis/java-core/blob/HEAD/CHANGELOG.md#&#8203;2810-httpsgithubcomgoogleapisjava-corecomparev289v2810-2022-08-24)

[Compare Source](https://togithub.com/googleapis/java-core/compare/v2.8.9...v2.8.10)

##### Dependencies

-   update dependency com.google.api:gax-bom to v2.19.0 ([#&#8203;907](https://togithub.com/googleapis/java-core/issues/907)) ([51b824c](https://togithub.com/googleapis/java-core/commit/51b824c225fd7095138e1ec2b6d47af4e2a34352))
-   update dependency io.grpc:grpc-bom to v1.49.0 ([#&#8203;908](https://togithub.com/googleapis/java-core/issues/908)) ([fbccd2d](https://togithub.com/googleapis/java-core/commit/fbccd2daceb0984c7cb95f84f89a116e54bf4ddc))

</details>

---

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Author: renovate-bot

samples/install-without-bom/pom.xml

@@ -36,7 +36,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.9</version>
+      <version>2.8.10</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>

samples/snapshot/pom.xml

@@ -34,7 +34,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.9</version>
+      <version>2.8.10</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>

samples/snippets/pom.xml

@@ -47,7 +47,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-core</artifactId>
-      <version>2.8.9</version>
+      <version>2.8.10</version>
       <scope>test</scope>
       <classifier>tests</classifier>
     </dependency>