[Bug] Step 4 workflow is not working

[mumincacao]

Summary

Workflow .github/workflows/4-add-branch-protections.yml is not working.

How to reproduce

1. Create or edit branch protection setting
2. Merge changes from origin main into ci step failure

Additional context

It's seem .github/script/merge-branch.sh has not executable permission.

[sinsukehlab]

Sorry for introducing the bug. I did make the script executable, but the script was no longer executable when pushed on the origin/* branch.
Also I forgot the token in the workflow file.