[api-extractor] Upgrade bundled TypeScript to 6.0.3 - #6163

[api-extractor] Upgrade bundled TypeScript to 6.0.3#6163

Ian Clanton-Thuon (iclanton) merged 4 commits into

microsoft:mainmicrosoft/rushstack:mainfrom

jahanford:ts-6jahanford/rushstack:ts-6Copy head branch name to clipboard