[skip-changelog] Bump setup-protoc to v2 (#2190)

* bump setup protoc to v2

* bump protoc-gen-go-grpc to 1.2.0

* check for compile diffs

Author: alessio-perugini

.github/workflows/check-protobuf-task.yml

@@ -59,15 +59,15 @@ jobs:
           go-version: ${{ env.GO_VERSION }}
 
       - name: Install protoc compiler
-        uses: arduino/setup-protoc@v1
+        uses: arduino/setup-protoc@v2
         with:
-          version: v3.16.0
+          version: v21.12
           repo-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install Go deps
         run: |
           go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.26.0
-          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.1.0
+          go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.2.0
 
       - name: Install Task
         uses: arduino/setup-task@v1
@@ -77,7 +77,9 @@ jobs:
 
       - name: Check protocol buffers compile correctly
         if: runner.os == 'Linux'
-        run: task protoc:compile
+        run: |
+          task protoc:compile
+          git diff --color --exit-code
 
   check:
     needs: run-determination