Implemented update functionallity

.gitea/workflows/ci.yml

@@ -0,0 +1,26 @@
+name: Updater CI/CD
+
+on:
+  push:
+    tags: [ "*" ]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login to registry
+        run: |
+          echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login git.leon-hoppe.de \
+            -u leon.hoppe --password-stdin
+
+      - name: Build Docker image
+        run: |
+          docker build -t git.leon-hoppe.de/leon.hoppe/updater:latest .
+
+      - name: Push Docker image
+        run: |
+          docker push git.leon-hoppe.de/leon.hoppe/updater:latest