chore(deps): update dependency com.google.protobuf:protobuf-java to v…

…3.21.12 (#1925)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.protobuf:protobuf-java](https://developers.google.com/protocol-buffers/) ([source](https://togithub.com/protocolbuffers/protobuf)) | `3.21.10` -> `3.21.12` | [![age](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-java/3.21.12/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-java/3.21.12/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-java/3.21.12/compatibility-slim/3.21.10)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.protobuf:protobuf-java/3.21.12/confidence-slim/3.21.10)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>protocolbuffers/protobuf</summary>

### [`v3.21.12`](https://togithub.com/protocolbuffers/protobuf/compare/v3.21.11...v3.21.12)

[Compare Source](https://togithub.com/protocolbuffers/protobuf/compare/v3.21.11...v3.21.12)

### [`v3.21.11`](https://togithub.com/protocolbuffers/protobuf/compare/v3.21.10...v3.21.11)

[Compare Source](https://togithub.com/protocolbuffers/protobuf/compare/v3.21.10...v3.21.11)

</details>

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dependencies.properties

@@ -23,7 +23,7 @@ version.gax_httpjson=0.105.1
 # Versions for dependencies which actual artifacts differ between Bazel and Gradle.
 # Gradle build depends on prebuilt maven artifacts, while Bazel build depends on Bazel workspaces
 # with the sources.
-version.com_google_protobuf=3.21.10
+version.com_google_protobuf=3.21.12
 version.google_java_format=1.15.0
 version.io_grpc=1.51.1