Merge pull request coreos#758 from HuijingHei/ci-multi-arch

ci: update `uraimo/run-on-arch-action` to v2 latest version

Author: HuijingHei

.github/workflows/cross.yml

@@ -25,7 +25,7 @@ jobs:
           submodules: true
           set-safe-directory: true
 
-      - uses: uraimo/run-on-arch-action@v2.2.0
+      - uses: uraimo/run-on-arch-action@v2.8.1
         name: Build
         id: build
         with: