try github actions

.github/workflows/unit-tests.yaml

@@ -0,0 +1,26 @@
+---
+name: Run unit tests
+on:
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  unit-tests:
+  runs-on: ubuntu-22.04
+  steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        ref: ${{ github.head_ref }}
+    - name: Install bazelisk
+      run: |
+        bazelisk_dir="$(realpath "$(mktemp -d -p .)")"
+        wget https://github.com/bazelbuild/bazelisk/releases/download/v1.19.0/bazelisk-linux-amd64 \
+          -O "${bazelisk_dir}/bazelisk"
+        chmod +x "${bazelisk_dir}/bazelisk"
+        echo "${bazelisk_dir}" >> "${GITHUB_PATH}"
+    - name: Run unit tests
+      run: ./execute_tests.sh