New CI workflow (#292)

* New CI workflow

* fix for incorrect version handling

* add normal CI workflow

* only trigger on pushes to master

.github/workflows/pull_request.yml

@@ -0,0 +1,23 @@
+name: pull-request
+on: pull_request
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Buf
+        uses: bufbuild/buf-setup-action@v1
+        with:
+          github_token: ${{ github.token }}
+
+      - name: Lint
+        uses: bufbuild/buf-lint-action@v1
+
+      - name: Push to schema registry
+        uses: bufbuild/buf-push-action@v1
+        with:
+          buf_token: ${{ secrets.BUF_TOKEN }}
+          draft: ${{ github.ref_name != 'master'}}