Update pr.yaml

Author: Itxaka

.github/workflows/pr.yaml

@@ -30,7 +30,7 @@ jobs:
           go run main.go $PKG_ALL_CHANGED_FILES
 
   build-arm64:
-    runs-on: ARM64
+    runs-on: ubuntu-24.04-arm
     steps:
     - uses: actions/checkout@v5
       with: