fixup! git-artifacts: add workaround for GCM Core on ARM64

We should not try to write that workaround if we're skipping the current
matrix job... In that case, `arm64/` wouldn't exist, anyway...

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

.github/workflows/git-artifacts.yml

@@ -385,7 +385,7 @@ jobs:
           path: ${{github.workspace}}/arm64
       # Workaround for Git Credential Manager Core on ARM64: https://github.com/git-for-windows/git/issues/3015
       - name: Create git-credential-manager-core wrapper for ARM64
-        if: matrix.arch.arm64 == true
+        if: env.SKIP != 'true' && matrix.arch.arm64 == true
         shell: bash
         run: |
           printf '%s\n' '#!/bin/sh' 'exec /mingw32/libexec/git-core/git-credential-manager-core.exe "$@"' > arm64/libexec/git-core/git-credential-manager-core