fix: skip dont fail on empty list

.github/workflows/development_run.yml

@@ -8,7 +8,7 @@ on:
       - "*"  # run for any pull request (see 1st job if condition for head name selection)
 jobs:
   should-run:
-    if: ${{ (github.ref != 'refs/heads/main') && (!startsWith(github.head_ref, 'release-')) }}
+    if: ${{ (github.ref != 'refs/heads/main') && (!startsWith(github.head_ref, 'release-')) && (!startsWith(github.event.head_commit.message, 'noT')) }}
     runs-on: ubuntu-latest
     steps:
       - name: Info
@@ -59,8 +59,6 @@ jobs:
       testfiles: ${{ steps.get_testfiles.outputs.testfiles }}
     steps:
       - uses: actions/checkout@v4
-      # TODO: use all if CHANGED_SRC is not empty
-      # TODO: map the test file names with the list of CHANGED_R otherwise
       - id: get_testfiles
         run: |
           if [[ -z "${{ needs.get_changes.outputs.run_all }}" ]]; then
@@ -75,7 +73,7 @@ jobs:
           cat $GITHUB_OUTPUT
 
   build-install-test:
-    if: ${{ !startsWith(github.event.head_commit.message, 'noT') }}
+    if: ${{ ( needs.gather-tests.outputs.testfiles != '[]' ) }}
     needs:
       - gather-tests
       - get-target-container