Fix: Create global coauthor file

Description

When creating the global git-coauthor file provide the global path internally instead of using the pathToCoAuthors fn.

[x] Tests for the changes have been added (for bug fixes / features)
[x] Docs have been reviewed and added / updated if needed (for bug fixes / features)
[x] Build (npm run build) was run locally and any changes were pushed
[x] All tests and linting (npm run checks) has passed locally and any fixes were made for failures
[x] I kept my pull requests small so it can be reviewed easier

Please check the type of change your PR introduces:

If a local .git-coauthor file is fine it will write the changes their instead of globally.

Issue URL:

Creating a global .git-coauthor file will only check and create a global file.