chore: Remove TODOs related to old NUnit.Analyzer issues and bump pac…

…kage (#5020)

I didn't add the NUnit.Analyzers to nunit.testdata as there were ~60
compile errors due to test cases that checks how the framework handles
bad data. So I've left that as future work.

Restore backward compatibility for Is.EqualTo<T>(T? expected) (#5013)

* Restore backward compatibility for Is.EqualTo<T>(T? expected)

Unfortunately this make UsingPropertiesComparer less elegant for the advanced case.
This either requires changing `EqualTo` into  `EqualToGeneric`
Or passing the type to `UsingPropertiesComparer<Person>`

* Removed Is.EqualToGeneric methods

Add ApplyToAsync override to ThrowsExceptionConstraint

Merge pull request #4899 from nunit/Issue4898_IsEqualTo

Ensure string overload is not called for types with implicit conversions to string.

prepare 4.3.0 (#4895)

Merge pull request #4804 from nunit/fix-value-task-awaiter

Use default blocking strategy for valuetasks

Issue4794 (#4796)

* Updated nuspec

* update system.memory to 4.5.5

Prepare for Release 4.2. (#4792)

Release 4.1.0

Merge pull request #4638 from nunit/prepare41

Prepare version 4.1