`lib.d.ts` Updates for TypeScript 7.1

[DanielRosenwasser]

Including

• https://github.com/microsoft/TSJS-lib-generator/
• Outstanding lib.d.ts PRs to TS
• Support recent Iterator/Iterator.prototype methods in esnext (eventually es2027) #63700
• Support Promise.allKeyed/Promise.allSettledKeyed methods in esnext (eventually es2027) #63701