ci: change ci bot (#308)

Author: jooohhn

.github/workflows/release.yml

@@ -25,6 +25,12 @@ jobs:
     name: Release
     runs-on: ubuntu-18.04
     needs: [authorize]
+    env:
+      GIT_AUTHOR_NAME: amplitude-sdk-bot
+      GIT_AUTHOR_EMAIL: amplitude-sdk-bot@users.noreply.github.com
+      GIT_COMMITTER_NAME: amplitude-sdk-bot
+      GIT_COMMITTER_EMAIL: amplitude-sdk-bot@users.noreply.github.com
+
     steps:
       - name: Checkout
         uses: actions/checkout@v1