Merge pull request #22625 from storybookjs/fix/revert-sandboxes-ref

Build: set correct ref on sandboxes Github action

.github/workflows/generate-sandboxes-next.yml

@@ -8,7 +8,7 @@ on:
   # 1. Uncomment the lines below and add your branch.
   # push:
   #   branches:
-  #     - your-branch-name
+  #     - <your-branch-name>
   # 2. change the "ref" value to <your-branch-name> in the actions/checkout step below.
   # 3. don't forget to undo the values back to `next` before you merge your changes.
 
@@ -24,7 +24,7 @@ jobs:
           node-version: 16
       - uses: actions/checkout@v3
         with:
-          ref: norbert/fix-sandbox-generation-script
+          ref: next
       - name: Setup git user
         run: |
           git config --global user.name "Storybook Bot"