revert GHA

Author: maxulysse

.github/workflows/ci.yml

@@ -44,6 +44,7 @@ jobs:
   test:
     name: "Run tests (${{ matrix.nf_test_files }} ${{ matrix.profile }} NF-${{ matrix.NXF_VER }})"
     needs: [nf-test-changes]
+    if: needs.nf-test-changes.outputs.nf_test_files != '[]'
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false