build(deps): bump protobuf

Bumps the examples-grpc-bridge group in /grpc-bridge/client with 1 update: [protobuf](https://github.com/protocolbuffers/protobuf).


Updates `protobuf` from 5.28.0 to 5.28.1
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](protocolbuffers/protobuf@v5.28.0...v5.28.1)

---
updated-dependencies:
- dependency-name: protobuf
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: examples-grpc-bridge
...

Signed-off-by: dependabot[bot] <support@github.com>

grpc-bridge/client/requirements.txt

@@ -202,18 +202,18 @@ idna==3.7 \
     --hash=sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc \
     --hash=sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0
     # via requests
-protobuf==5.28.0 \
-    --hash=sha256:018db9056b9d75eb93d12a9d35120f97a84d9a919bcab11ed56ad2d399d6e8dd \
-    --hash=sha256:510ed78cd0980f6d3218099e874714cdf0d8a95582e7b059b06cabad855ed0a0 \
-    --hash=sha256:532627e8fdd825cf8767a2d2b94d77e874d5ddb0adefb04b237f7cc296748681 \
-    --hash=sha256:6206afcb2d90181ae8722798dcb56dc76675ab67458ac24c0dd7d75d632ac9bd \
-    --hash=sha256:66c3edeedb774a3508ae70d87b3a19786445fe9a068dd3585e0cefa8a77b83d0 \
-    --hash=sha256:6d7cc9e60f976cf3e873acb9a40fed04afb5d224608ed5c1a105db4a3f09c5b6 \
-    --hash=sha256:853db610214e77ee817ecf0514e0d1d052dff7f63a0c157aa6eabae98db8a8de \
-    --hash=sha256:d001a73c8bc2bf5b5c1360d59dd7573744e163b3607fa92788b7f3d5fefbd9a5 \
-    --hash=sha256:dde74af0fa774fa98892209992295adbfb91da3fa98c8f67a88afe8f5a349add \
-    --hash=sha256:dde9fcaa24e7a9654f4baf2a55250b13a5ea701493d904c54069776b99a8216b \
-    --hash=sha256:eef7a8a2f4318e2cb2dee8666d26e58eaf437c14788f3a2911d0c3da40405ae8
+protobuf==5.28.1 \
+    --hash=sha256:0dfd86d2b5edf03d91ec2a7c15b4e950258150f14f9af5f51c17fa224ee1931f \
+    --hash=sha256:1b04bde117a10ff9d906841a89ec326686c48ececeb65690f15b8cabe7149495 \
+    --hash=sha256:42597e938f83bb7f3e4b35f03aa45208d49ae8d5bcb4bc10b9fc825e0ab5e423 \
+    --hash=sha256:4304e4fceb823d91699e924a1fdf95cde0e066f3b1c28edb665bda762ecde10f \
+    --hash=sha256:4b4b9a0562a35773ff47a3df823177ab71a1f5eb1ff56d8f842b7432ecfd7fd2 \
+    --hash=sha256:4c7f5cb38c640919791c9f74ea80c5b82314c69a8409ea36f2599617d03989af \
+    --hash=sha256:51f09caab818707ab91cf09cc5c156026599cf05a4520779ccbf53c1b352fb25 \
+    --hash=sha256:c529535e5c0effcf417682563719e5d8ac8d2b93de07a56108b4c2d436d7a29a \
+    --hash=sha256:cabfe43044ee319ad6832b2fda332646f9ef1636b0130186a3ae0a52fc264bb4 \
+    --hash=sha256:f24e5d70e6af8ee9672ff605d5503491635f63d5db2fffb6472be78ba62efd8f \
+    --hash=sha256:fc063acaf7a3d9ca13146fefb5b42ac94ab943ec6e978f543cd5637da2d57957
     # via
     #   -r requirements.in
     #   grpcio-tools