ci: enable the ability to receive the commit message. (#51)

Co-authored-by: hayatsu <[email protected]>

Author: hayawata3626

.github/workflows/transform-tokens.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Create PR 
         uses: peter-evans/create-pull-request@v3
         with:
-          commit-message: "Tokens updated"
+          commit-message: ${{ github.event.client_payload.commitMessage || 'Tokens updated' }}
           title: "Design tokens updated"
           body: "Design tokens have been updated via Figma and need to be reviewed."
         env: