feat(zsh): add smoketest

.github/workflows/zsh.yml

@@ -0,0 +1,25 @@
+---
+name: "Config test"
+on: ["push"]
+
+jobs:
+  test:
+    runs-on: "ubuntu-latest"
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - "master"
+          - "5.9"
+          - "5.8.1"
+          - "5.7.1"
+    container:
+      image: "ghcr.io/zsh-users/zsh:${{ matrix.version }}"
+    steps:
+      - uses: "actions/checkout@v4"
+
+      - run: "sudo apt-get install -y stow"
+      - run: "stow shell"
+      - run: "stow zsh"
+
+      - run: "zsh --version"