package:checks v0.3.2

• Bump test dev dependency constraint.
• Add isNotA<R>() check extension as a convenience in place of
  not((it) => it.isA<R>()).
• Require Dart 3.11
• Improve speed of pretty printing for large collections.
• Improve formatting for failures involving unexpected exceptions.
• Improve formatting for failed String equality checks - indent string diff
  lines.
• Fix a bug when using asynchronous conditions with mayEmit or
  mayEmitMultiple. Note that extensions using nestAsync should synchronously
  forward exceptions from that call.
• Fix a bug when printing a failure message involving a value that returns an
  empty output from toString().
• Annotated async expectations with @awaitNotRequired since tests are safely
  held open until expectations complete so it's not always necessary to
  explicitly await them.
• Output more compact failure messages for simple expectations.