build docker image separately for each platform

.github/workflows/docker-develop.yml

@@ -29,13 +29,25 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Build and Push to Docker Hub
+      - name: Build and Push to Docker Hub (amd64)
         uses: docker/build-push-action@v5
         with:
           builder: ${{ steps.buildx.outputs.name }}
           context: .
           push: true
-          platforms: ${{ steps.buildx.outputs.platforms }}
+          platforms: linux/amd64
+          provenance: false
+          tags: misskey/misskey:develop
+          labels: develop
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+      - name: Build and Push to Docker Hub (arm64)
+        uses: docker/build-push-action@v5
+        with:
+          builder: ${{ steps.buildx.outputs.name }}
+          context: .
+          push: true
+          platforms: linux/arm64
           provenance: false
           tags: misskey/misskey:develop
           labels: develop