fix: use main branch for changesets/bot action (#363)

Co-authored-by: 김윤호 yunho <kimyouknow@naver.com>

Author: guesung

.github/workflows/changeset-bot.yml

@@ -11,4 +11,4 @@ jobs:
   bot:
     runs-on: ubuntu-latest
     steps:
-      - uses: changesets/bot@v1
+      - uses: changesets/bot@e755cedfffdc49f54ce5daa69d960a143941b787 # master