fix: fix http/index.d.ts types

[trew]

This PR aims to improve the handcrafted typings in index.d.ts in order to allow projects that depend on this to have skipLibCheck set to false.

Since skipLibCheck is true in tsconfig.json (through extends config), index.d.ts is not compiled with tsc (see microsoft/TypeScript#30511).

I added a separate step (lint:tsc:types) that compiles this file specifically and also fixed the issues typescript complained about.

http/index.d.ts:1:13 - error TS1192: Module '"node:http"' has no default export.
1 import type http from 'node:http';

http/index.d.ts:2:13 - error TS1192: Module '"node:https"' has no default export.
2 import type https from 'node:https';

http/index.d.ts:19:15 - error TS2536: Type '"length"' cannot be used to index type 'Params'.
19 } & { length: Params['length'] };

[trew]

@3846masa I would love to see this merged together with #1031 (which is removing a transitive dependency to deprecated module punycode) so I can update to latest version of http-cookie-agent. I'm currently stuck on an older version because of the compilation issues.

[3846masa]

Thanks for your contribution. This PR will be released as v6.0.6 with #1031.

[trew]

Appreciate it!