ci(gha): try arm64 runner

Signed-off-by: Tiago Castro <[email protected]>

.github/workflows/pr-code-lint.yaml

@@ -3,9 +3,12 @@ on:
   merge_group:
   pull_request:
     types: ['opened', 'edited', 'reopened', 'synchronize']
+  push:
+    branches:
+      - gha
 jobs:
   rust-lint:
-    runs-on: ubuntu-latest
+    runs-on: github-arm64-2c-8gb
     steps:
       - uses: actions/checkout@v4
         with: