force actions version

Author: hkreuter

.github/workflows/dispatch_module.yaml

@@ -53,7 +53,7 @@ jobs:
         with:
             testplan: ${{ needs.build_testplan.outputs.testplan }}
             runs_on: '"ubuntu-latest"'
-            defaults: 'v4'
+            defaults: 'v4.21.2'
             plan_folder: '.github/oxid-esales'
         secrets:
             DOCKER_HUB_USER: ${{ secrets.DOCKER_HUB_USER }}