deps: bump com.google.errorprone:error_prone_core from 2.31.0 to 2.34.0

Bumps [com.google.errorprone:error_prone_core](https://github.com/google/error-prone) from 2.31.0 to 2.34.0.
- [Release notes](https://github.com/google/error-prone/releases)
- [Commits](google/error-prone@v2.31.0...v2.34.0)

---
updated-dependencies:
- dependency-name: com.google.errorprone:error_prone_core
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -143,7 +143,7 @@
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-datastore-parent</site.installationModule>
     <project.javadoc.protobufBaseURL>https://googleapis.dev/java/google-api-grpc/latest</project.javadoc.protobufBaseURL>
-    <error-prone.version>2.31.0</error-prone.version>
+    <error-prone.version>2.34.0</error-prone.version>
   </properties>
 
   <dependencyManagement>