Change self hosted runner tag (#1008)

* update publish job to use the self-hosted runner

* only run publish job on self-hosted runner

Author: sean-breen

.github/workflows/release-branch.yml

@@ -229,7 +229,7 @@ jobs:
 
   upload-packages:
     name: Upload packages
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-22.04-amd64
     needs: [vars,release-draft,tag-release]
     permissions:
       id-token: write