Use xcode too

Author: ychin

.github/actions/test_artifacts/action.yml

@@ -13,7 +13,6 @@ runs:
 # in the name of the artifact rather than deriving
 # it from the matrix automatically like in Vim
 # upstream.
-
 #    - name: Collect matrix properties for naming
 #      uses: actions/github-script@v8
 #      id: matrix-props

.github/workflows/macvim-buildtest.yaml

@@ -386,7 +386,7 @@ jobs:
         #if: ${{ !cancelled() && failure() }}
         uses: ./.github/actions/test_artifacts
         with:
-          artifact-name: ${{ inputs.os }}
+          artifact-name: ${{ inputs.os + '-' + inputs.xcode }}
 
       - name: Build MacVim dmg image
         if: inputs.publish && (startsWith(github.ref, 'refs/tags/') || github.ref == 'refs/heads/master')