feat: default auth-type to web

[wraithgar]

BREAKING CHANGE: the default auth-type config value is now web

[wraithgar]

Closes npm/rfcs#629

[wraithgar]

This is very likely to collide with #5550 once it lands. Easy to rebuild this if that happens lmk.

[npm-cli-bot]

found 20 benchmarks with statistically significant performance improvements

• app-large: clean, lock-only, cache-only, cache-only:peer-deps, modules-only, no-lock, no-cache, no-modules, no-clean, no-clean:audit
• app-medium: clean, lock-only, cache-only, cache-only:peer-deps, modules-only, no-lock, no-cache, no-modules, no-clean, no-clean:audit

timing results

app-large	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	46.866 ±0.21	25.100 ±0.18	36.334 ±18.89	25.905 ±1.35	3.933 ±0.06	4.146 ±0.12	3.146 ±0.06	16.309 ±0.14	3.197 ±0.07	4.829 ±0.37
#5551	0.127 ±0.00	0.126 ±0.01	0.131 ±0.00	0.138 ±0.00	0.127 ±0.01	0.127 ±0.00	0.140 ±0.01	0.150 ±0.02	0.137 ±0.00	0.136 ±0.00

app-medium	clean	lock-only	cache-only	cache-only peer-deps	modules-only	no-lock	no-cache	no-modules	no-clean	no-clean audit
npm@8	34.119 ±2.19	18.753 ±0.04	17.067 ±0.10	18.047 ±0.72	3.621 ±0.01	3.621 ±0.06	3.303 ±0.03	12.068 ±0.20	3.016 ±0.00	4.063 ±0.05
#5551	0.145 ±0.01	0.128 ±0.00	0.130 ±0.01	0.133 ±0.01	0.140 ±0.01	0.130 ±0.00	0.128 ±0.00	0.141 ±0.01	0.130 ±0.00	0.128 ±0.00

[MylesBorins]

🎉