build(deps): bump google-protobuf in /endpoints/getting-started-grpc (#1483)

Bumps [google-protobuf](https://github.com/protocolbuffers/protobuf) from 3.24.2 to 3.25.5.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v3.24.2...v3.25.5)

---
updated-dependencies:
- dependency-name: google-protobuf
  dependency-type: indirect
...

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

Author: dependabot[bot]

endpoints/getting-started-grpc/Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    google-protobuf (3.24.2)
+    google-protobuf (3.25.5)
     googleapis-common-protos-types (1.8.0)
       google-protobuf (~> 3.18)
     grpc (1.57.0)