Fix GitHub Actions workflow by using built-in bot credentials

Replace secret-based git config with GitHub Actions bot credentials
to fix the failing Setup git step in the release workflow.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: johnlindquist

.github/workflows/onPushToMain.yml

@@ -32,8 +32,8 @@ jobs:
       - name: Setup git
         if: ${{ steps.version-check.outputs.skipped == 'false' }}
         run: |
-          git config --global user.email ${{ secrets.GH_EMAIL }}
-          git config --global user.name ${{ secrets.GH_USERNAME }}
+          git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git config --global user.name "github-actions[bot]"
       - name: Generate oclif README
         if: ${{ steps.version-check.outputs.skipped == 'false' }}
         id: oclif-readme