build(deps): bump peter-evans/create-pull-request from 6.0.2 to 6.0.4 (#355)

Bumps [peter-evans/create-pull-request](https://github.com/peter-evans/create-pull-request) from 6.0.2 to 6.0.4.
- [Release notes](https://github.com/peter-evans/create-pull-request/releases)
- [Commits](peter-evans/create-pull-request@70a41ab...9153d83)

---
updated-dependencies:
- dependency-name: peter-evans/create-pull-request
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/update-protobuf.yml

@@ -25,7 +25,7 @@ jobs:
           ./update-sha.sh ${{ inputs.envoy_version }} | tee API_SHAS
           ./update-api.sh
       - name: Create Pull Request
-        uses: peter-evans/create-pull-request@70a41aba780001da0a30141984ae2a0c95d8704e  # v6.0.2
+        uses: peter-evans/create-pull-request@9153d834b60caba6d51c9b9510b087acf9f33f83  # v6.0.4
         with:
           branch: update-protobuf-to-${{ inputs.envoy_version }}
           base: main