ci: Actions auf native Shell-Commands umgestellt (kein Node.js nötig)

.gitea/workflows/pr-check.yml

@@ -9,7 +9,15 @@ jobs:
   lint-and-test:
     runs-on: server-runner
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout
+        run: |
+          if [ -d .git ]; then
+            git fetch origin
+            git reset --hard origin/nightly
+            git clean -fd
+          else
+            git clone --depth=1 --branch nightly https://gitea.it-drui.de/viewit/KX-Bridge-Release.git .
+          fi
 
       - name: Dependencies installieren
         run: pip3 install -r requirements.txt