fix: test different bash versions

Author: martin-schulze-vireso

.github/workflows/test.yml

@@ -7,3 +7,21 @@ on:
 jobs:
   test:
     uses: bats-core/.github/.github/workflows/test.yml@v1
+
+  bash-versions:
+    #if: inputs.npm
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix: 
+        version: [3, 4, 5, rc]
+    container:
+      image: bash:${{ matrix.version }}
+    steps:
+      - uses: step-security/harden-runner@ec9f2d5744a09debf3a187a3f4f675c53b671911 # v2.13.0
+        with: { egress-policy: audit }
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      - run: apk add --update npm
+      - run: npm cit
+        env:
+          BATS_LIB_PATH: ${{ github.workspace }}/node_modules