deps: update dependency com.google.cloud:google-cloud-monitoring to v3.2.7 (#1810)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-monitoring](https://togithub.com/googleapis/java-monitoring) | `3.2.6` -> `3.2.7` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-monitoring/3.2.7/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-monitoring/3.2.7/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-monitoring/3.2.7/compatibility-slim/3.2.6)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-monitoring/3.2.7/confidence-slim/3.2.6)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

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

### [`v3.2.7`](https://togithub.com/googleapis/java-monitoring/blob/HEAD/CHANGELOG.md#&#8203;327-httpsgithubcomgoogleapisjava-monitoringcomparev326v327-2022-04-07)

[Compare Source](https://togithub.com/googleapis/java-monitoring/compare/v3.2.6...v3.2.7)

</details>

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samples/install-without-bom/pom.xml

@@ -23,7 +23,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.0</opencensus.version>
     <trace.version>2.1.9</trace.version>
-    <cloudmonitoring.version>3.2.6</cloudmonitoring.version>
+    <cloudmonitoring.version>3.2.7</cloudmonitoring.version>
   </properties>
 
 

samples/snapshot/pom.xml

@@ -23,7 +23,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <opencensus.version>0.31.0</opencensus.version>
     <trace.version>2.1.9</trace.version>
-    <cloudmonitoring.version>3.2.6</cloudmonitoring.version>
+    <cloudmonitoring.version>3.2.7</cloudmonitoring.version>
   </properties>
 
   <dependencies>