full path to action

.gitea/workflows/test-pr.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
-      - uses: ruby/setup-ruby@v1
+      - uses: https://github.com/ruby/setup-ruby@v1
         if: matrix.os == 'arm-ubuntu-latest'
         with:
           ruby-version: '3.0' # Not needed with a .ruby-version file