fix(ci): remove arm64 from Docker platforms and add timeout

.github/workflows/ci.yml

@@ -135,6 +135,7 @@ jobs:
     needs: [rust-format, clippy, rust-test, security-audit, frontend-lint]
     if: startsWith(github.ref, 'refs/tags/v')
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     steps:
       - uses: actions/checkout@v4
 
@@ -166,7 +167,7 @@ jobs:
         uses: docker/build-push-action@v6
         with:
           context: .
-          platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}