chore(deps): bump actions/checkout from 5.0.1 to 6.0.2 (#78) · pythonnz/pdfbaker@d00c611

This action is being deprecated in favor of 'codecov-action'. Please update CI accordingly to use 'codecov-action@v5' with 'report_type: test_results'. The 'codecov-action' should and can be run at least once for coverage and once for test results