Bump com.google.errorprone:error_prone_annotations from 2.4.0 to 2.29.2

Bumps [com.google.errorprone:error_prone_annotations](https://github.com/google/error-prone) from 2.4.0 to 2.29.2.
- [Release notes](https://github.com/google/error-prone/releases)
- [Commits](google/error-prone@v2.4.0...v2.29.2)

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

Signed-off-by: dependabot[bot] <support@github.com>

gremlin-annotations/pom.xml

@@ -90,7 +90,7 @@ limitations under the License.
         <dependency>
             <groupId>com.google.errorprone</groupId>
             <artifactId>error_prone_annotations</artifactId>
-            <version>2.4.0</version>
+            <version>2.29.2</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>