Revert "does this step even do anything?"

This reverts commit e9a92dc516.

action.yml

@@ -4,6 +4,8 @@ description: build and publish an Arch package
 runs:
   using: "composite"
   steps:
+    - name: Checkout
+      uses: actions/checkout@v4
     
     - name: Create publish script
       shell: bash