[ci] Fix deprecated package:web usages.

[camsim99]

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[ditman]

I'm suspicious with the minimum flutter version for this (for the flutter versions that pin 0.3.0), we might need to change this to a range that skips 0.4.1

[ditman]

Because web_benchmarks depends on flutter_test from sdk which depends on web 0.3.0, web 0.3.0 is required.
So, because web_benchmarks depends on web ^0.4.1, version solving failed.


You can try the following suggestion to make the pubspec resolve:
* Consider downgrading your constraint on web: flutter pub add web:^0.3.0

Yuck

[ditman]

Solved by: dart-lang/web#140 (published v 0.4.2 that doesn't deprecate the legacy import helpers.dart)

[ditman]

(Closing)