tools: remove need to install buf (#4605)

* tools: remove need to install buf

- using buf docker image instead of needing devs to install it

Signed-off-by: Marko Baricevic <marbar3778@yahoo.com>

* fix ci for lint and break checking

.github/workflows/proto.yml

@@ -0,0 +1,12 @@
+name: Proto check
+on: [pull_request]
+jobs:
+  proto-checks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: docker-practice/actions-setup-docker@master
+      - name: lint
+        run: make proto-lint
+      - name: check-breakage
+        run: make proto-check-breaking-ci