ci: add bazel tests

.github/workflows/test-bazel.yml

@@ -0,0 +1,31 @@
+name: Bazel unit tests and linting
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - "release/**"
+    paths:
+      - "**.bzl"
+      - "**.bazel"
+      - ".github/workflows/test-bazel.yml"
+  pull_request:
+    paths:
+      - "**.bzl"
+      - "**.bazel"
+      - ".github/workflows/test-bazel.yml"
+
+jobs:
+  bazel-test:
+    name: Bazel tests
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+        with:
+          ref: ${{ !github.event.pull_request.head.repo.fork && github.head_ref || '' }}
+
+      - name: Run bazel test
+        shell: bash
+        run: bazelisk test --test_output=all ...