Add build studio multiarch image workflow

.github/workflows/build_studio_image.yml

@@ -0,0 +1,31 @@
+name: Build studio multiarch image with buildx
+
+on:
+  # run this action every day at 04:00 UTC (Singapore noon)
+  schedule:
+    - cron: '0 4 * * *'
+  workflow_dispatch:
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    timeout-minutes: 120
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: jingsam/supabase-studio:latest