feat!: replace make-fetch-happen with ky and refresh tests/deps

[gastonfournier]

About the changes

• Migrates HTTP requests from make-fetch-happen to ky, keeping proxy/agent support and shared retry behavior for 408/429/5xx responses.
• Adds a small ky helper (src/http-client.ts), updates request/bootstrap code to use it, and keeps errors surfaced as responses.
• Upgrades nock for native fetch mocking, removes make-fetch-happen deps, and tunes TypeScript config for DOM types. Tests adjusted for new retry behavior and lint fixes included.
• CJS + ky: ky is ESM-only; we kept the project CommonJS by dynamically importing ky in src/http-client.ts and passing that instance to callers. No "type": "module" change; no static ky imports in CJS modules.

[coveralls]

Pull Request Test Coverage Report for Build 19823188719

Details

• 31 of 33 (93.94%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.03%) to 89.674%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/request.ts	21	23	91.3%

Totals
Change from base Build 19821896389:	0.03%
Covered Lines:	1190
Relevant Lines:	1277

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💛 - Coveralls