[10.0.x] Bump com.google.cloud:google-cloud-datastore (#11991)

Bumps the integration-deps group with 1 update: [com.google.cloud:google-cloud-datastore](https://github.com/googleapis/java-datastore).


Updates `com.google.cloud:google-cloud-datastore` from 2.20.1 to 2.20.2
- [Release notes](https://github.com/googleapis/java-datastore/releases)
- [Changelog](https://github.com/googleapis/java-datastore/blob/main/CHANGELOG.md)
- [Commits](https://github.com/googleapis/java-datastore/compare/v2.20.1...v2.20.2)

---
updated-dependencies:
- dependency-name: com.google.cloud:google-cloud-datastore
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: integration-deps
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

jetty-gcloud/pom.xml

@@ -17,7 +17,7 @@
   </modules>
 
   <properties>
-    <gcloud.version>2.20.1</gcloud.version>
+    <gcloud.version>2.20.2</gcloud.version>
   </properties>
 
 </project>