ci(azure-pipelines): add bash debug output; checkout self

azure-pipelines.yaml

@@ -21,6 +21,15 @@ jobs:
     image: devfra.azurecr.io/de.fraport.build/tools:1.1.0
     endpoint: devfra
   steps:
+    - checkout: self
+    - task: Bash@3
+      displayName: Debug shell output
+      inputs:
+        targetType: inline
+        script: |
+          pwd
+          ls -a .
+          ls -a $(Build.Repository.LocalPath)
     - task: Docker@2
       name: dockerLoginDevFra
       displayName: Docker Login to devfra