Rename branch for devtools script

Author: apple502j

.github/workflows/build.yml

@@ -18,6 +18,6 @@ jobs:
           app_id: ${{ secrets.BOT_APP_ID }}
           private_key: ${{ secrets.BOT_PRIVATE_KEY }}
       - name: Build DevTools extension
-        uses: ScratchAddons/devtools-script@master
+        uses: ScratchAddons/devtools-script@main
         env:
           GH_TOKEN: ${{ steps.generate-token.outputs.token }}