Bump protobuf-bom from 3.21.6 to 3.21.7 (#231)

Bumps [protobuf-bom](https://github.com/protocolbuffers/protobuf) from 3.21.6 to 3.21.7.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.21.6...v3.21.7)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

Author: dependabot[bot]

dependencyManagement/build.gradle.kts

@@ -36,7 +36,7 @@ val DEPENDENCY_BOMS = listOf(
   "com.amazonaws:aws-java-sdk-bom:1.12.314",
   "com.fasterxml.jackson:jackson-bom:2.13.4",
   "com.google.guava:guava-bom:31.1-jre",
-  "com.google.protobuf:protobuf-bom:3.21.6",
+  "com.google.protobuf:protobuf-bom:3.21.7",
   "com.linecorp.armeria:armeria-bom:1.19.0",
   "io.grpc:grpc-bom:1.49.1",
   "io.opentelemetry.instrumentation:opentelemetry-instrumentation-bom-alpha:${if (!TEST_SNAPSHOTS) "$otelVersion-alpha" else "$otelSnapshotVersion-alpha-SNAPSHOT"}",