Install protoc for release verification

Author: tconley1428

.github/workflows/release-publish.yml

@@ -125,6 +125,11 @@ jobs:
           fetch-depth: 0
           submodules: recursive
       - uses: dtolnay/rust-toolchain@29eef336d9b2848a0b548edc03f92a220660cdb8 # stable
+      - uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3
+        with:
+          # Keep the generated Core protobuf code compatible with CI.
+          version: "23.x"
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
       - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
         with:
           python-version: "3.11"