Bump google-protobuf from 4.28.0 to 4.28.2 in the bundler group (#412)

Bumps the bundler group with 1 update:
[google-protobuf](https://github.com/protocolbuffers/protobuf).

Updates `google-protobuf` from 4.28.0 to 4.28.2
<details>
<summary>Commits</summary>
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<li>See full diff in <a
href="https://github.com/protocolbuffers/protobuf/commits">compare
view</a></li>
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</details>
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Gemfile.lock

@@ -33,22 +33,22 @@ GEM
     ffi-compiler (1.3.2)
       ffi (>= 1.15.5)
       rake
-    google-protobuf (4.28.0)
+    google-protobuf (4.28.2)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.0-aarch64-linux)
+    google-protobuf (4.28.2-aarch64-linux)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.0-arm64-darwin)
+    google-protobuf (4.28.2-arm64-darwin)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.0-x86-linux)
+    google-protobuf (4.28.2-x86-linux)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.0-x86_64-darwin)
+    google-protobuf (4.28.2-x86_64-darwin)
       bigdecimal
       rake (>= 13)
-    google-protobuf (4.28.0-x86_64-linux)
+    google-protobuf (4.28.2-x86_64-linux)
       bigdecimal
       rake (>= 13)
     hashdiff (1.1.1)