Unable to update packages due to version conflict

[pennzht]

PR #426 is updating the versions of Gallery's upstream packages to prepare for null-safe migration.

A version conflict between web_benchmarks and google_fonts arose:

Because every version of web_benchmarks depends on shelf >=0.7.5 <1.0.0 which depends on http_parser ^3.1.0, every version of web_benchmarks requires http_parser ^3.1.0.
And because google_fonts >=2.0.0-nullsafety.0 depends on http ^0.13.0 which depends on http_parser ^4.0.0, web_benchmarks is incompatible with google_fonts >=2.0.0-nullsafety.0.
So, because gallery depends on both google_fonts >=2.0.0-nullsafety.0 and web_benchmarks ^0.0.3, version solving failed.

See #426 for more details.

[pennzht]

Resolved by web_benchmarks 0.0.4