add a workflow

.github/workflows/learn-gh-actions.yaml

@@ -0,0 +1,13 @@
+name: learn-github-actions
+run-name: ${{ github.actor }} is learning Github Actions
+on: [push]
+jobs:
+  check-bats-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+      - run: npm install -g bats
+      - run: bats -v