fix: Align CI workflow with Mintel standards (add container image & buildx)

.gitea/workflows/deploy.yml

@@ -16,6 +16,8 @@ jobs:
   prepare:
     name: 🔍 Prepare Environment
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     outputs:
       target:           ${{ steps.determine.outputs.target }}
       image_tag:        ${{ steps.determine.outputs.image_tag }}
@@ -26,6 +28,11 @@ jobs:
       directus_host:    ${{ steps.determine.outputs.directus_host }}
       project_name:     ${{ steps.determine.outputs.project_name }}
     steps:
+      - name: 🧹 Maintenance (Runner Cleanup)
+        run: |
+          docker image prune -f
+          docker builder prune -f --filter "until=24h"
+
       - name: Checkout repository
         uses: actions/checkout@v4
         with:
@@ -73,8 +80,11 @@ jobs:
     needs: prepare
     if: needs.prepare.outputs.target != 'skip'
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
       - uses: pnpm/action-setup@v4
       - uses: actions/setup-node@v4
         with:
@@ -94,25 +104,36 @@ jobs:
     needs: prepare
     if: needs.prepare.outputs.target != 'skip'
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: 🐳 Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: 🔐 Registry Login
         run: echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login registry.infra.mintel.me -u "${{ secrets.REGISTRY_USERNAME }}" --password-stdin
       
       - name: 🏗️ Build and Push
         run: |
-          docker build \
+          docker buildx build \
+            --pull \
+            --platform linux/amd64,linux/arm64 \
             --build-arg NPM_TOKEN=${{ secrets.NPM_TOKEN }} \
             --build-arg NEXT_PUBLIC_BASE_URL=${{ needs.prepare.outputs.next_public_base_url }} \
             --build-arg DIRECTUS_URL=${{ needs.prepare.outputs.directus_url }} \
-            -t registry.infra.mintel.me/mintel/mb-grid-solutions:${{ needs.prepare.outputs.image_tag }} .
-          docker push registry.infra.mintel.me/mintel/mb-grid-solutions:${{ needs.prepare.outputs.image_tag }}
+            -t registry.infra.mintel.me/mintel/mb-grid-solutions:${{ needs.prepare.outputs.image_tag }} \
+            --push .
 
   deploy:
     name: 🚀 Deploy
     needs: [prepare, build, qa]
     if: needs.prepare.outputs.target != 'skip'
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
       - name: 🚀 Deploy via SSH
         uses: appleboy/ssh-action@master
@@ -156,6 +177,8 @@ jobs:
     needs: [prepare, deploy]
     if: always()
     runs-on: docker
+    container:
+      image: catthehacker/ubuntu:act-latest
     steps:
       - name: Notify Gotify
         run: |