Bump google-protobuf from 4.28.1 to 4.28.2 (just-the-docs#1538)

Bumps [google-protobuf](https://github.com/protocolbuffers/protobuf) from 4.28.1 to 4.28.2.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/commits)

---
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]

Gemfile.lock

@@ -43,10 +43,10 @@ GEM
       fiber-storage
     fiber-storage (0.1.0)
     forwardable-extended (2.6.0)
-    google-protobuf (4.28.1-arm64-darwin)
+    google-protobuf (4.28.2-arm64-darwin)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.1-x86_64-linux)
+    google-protobuf (4.28.2-x86_64-linux)
       bigdecimal
       rake (>= 13)
     hashery (2.1.2)