fix: 이벤트 트리거 pr 설정

.github/workflows/chromatic.yml

@@ -2,7 +2,9 @@
 name: "Chromatic Deployment"
 
 # Event for the workflow
-on: push
+on:
+  push:
+  pull_request:
 
 # List of jobs
 jobs:
@@ -32,6 +34,7 @@ jobs:
           projectToken: ${{ secrets.CHROMATIC_PROJECT_TOKEN }}
           token: ${{ secrets.GITHUB_TOKEN }}
       - name: comment PR
+        if: github.event_name == 'pull_request'
         uses: thollander/actions-comment-pull-request@v1
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}