Simplify git config commands in workflow

[nev21]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (cff65de) to head (c3a6546).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #286   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           26        26           
  Lines          458       458           
  Branches       113       113           
=========================================
  Hits           458       458           

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[Copilot]

Pull request overview

This PR simplifies the git configuration commands in the sync-rush-versions workflow by removing the --global flag. The change makes the git config scoped to the local repository instead of global, which is more appropriate for CI/CD environments where each workflow run operates in an isolated container.

Key Changes

• Changed git config from global to local scope for setting user name and email in the workflow

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