Add test-alpine CI job

.github/workflows/test.yml

@@ -30,3 +30,27 @@ jobs:
         with:
           version: "2023.1"
           install-go: false
+
+  test-alpine:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Alpine
+        uses: jirutka/setup-alpine@v1
+        with:
+          branch: latest-stable
+
+      - name: Setup Alpine dependencies
+        run: |
+          cat /etc/alpine-release
+          apk add git go make bash binutils-gold
+        shell: alpine.sh --root {0}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Run tests against bash on alpine
+        run: |
+          git config --global --add safe.directory /home/runner/work/shell-tester/shell-tester 
+          # repo is owned by user and we intend to execute as root
+          make test
+        shell: alpine.sh --root {0}