Shell-Syntax im CI mitpruefen

.github/workflows/lint.yml

@@ -30,3 +30,11 @@ jobs:
         run: |
           set -euo pipefail
           python3 -m compileall -q runtime
+
+      - name: Shell Syntax pruefen
+        shell: bash
+        run: |
+          set -euo pipefail
+          while IFS= read -r -d '' file; do
+            bash -n "$file"
+          done < <(find . -type f -name '*.sh' -print0)