Run Android release job on ephemeral runner

Author: huydhn

.github/workflows/android-release-artifacts.yml

@@ -49,7 +49,8 @@ jobs:
       contents: read
     with:
       secrets-env: EXECUTORCH_MAVEN_SIGNING_KEYID EXECUTORCH_MAVEN_SIGNING_PASSWORD EXECUTORCH_MAVEN_CENTRAL_PASSWORD EXECUTORCH_MAVEN_CENTRAL_USERNAME EXECUTORCH_MAVEN_SIGNING_GPG_KEY_CONTENTS
-      runner: linux.2xlarge
+      # As this job has access to Maven credential, run this on a fresh ephemeral runner
+      runner: linux.2xlarge.ephemeral
       docker-image: executorch-ubuntu-22.04-clang12-android
       submodules: 'recursive'
       ref: ${{ github.sha }}