Fix linting

Author: andreaswittig

.github/workflows/lint.yml

@@ -14,7 +14,7 @@ jobs:
     - name: yamlllint
       run: |
         pip install yamllint==1.35.1
-        yamllint yamllint test/*.yml
+        yamllint test/*.yml
     - name: cfn-lint
       run: |
         pip install cfn-lint==1.20.1