ci: update workflow

.github/workflows/test.yml

@@ -14,5 +14,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Run a one-line script
+      - name: Install ZSH
+        run: |-
+          sudo apt update
+          sudo apt install zsh -y
+
+      - name: Test
         run: ./test/git-open.test.zsh