fix: support NYC cwd option for file pattern matching

[alecmestroni]

• Add support for NYC 'cwd' option in findSourceFiles function
• Pass cwd option to globby for proper file pattern resolution
• Add test case 'all-files-cwd' to verify cwd functionality
• Update CI configuration to include new test case in matrix

This fix ensures that when NYC is configured with a 'cwd' option, the file patterns are resolved relative to the specified directory instead of the current working directory.

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[alecmestroni]

Hi @jennifer-shehane any news on this merge request?

Thanks Alec

[DGAISmith]

Any info on this one? Would be super useful to us in our monorepo, where the cypress tests are in a different sibling folder to our apps.