Update dependency NUnit.Analyzers to 4.9.0

[devlead]

This PR contains the following updates:

Package	Type	Update	Change
NUnit.Analyzers	nuget	minor	4.8.1 -> 4.9.0

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Release Notes

nunit/nunit.analyzers (NUnit.Analyzers)

v4.9.0: NUnit Analyzers 4.9 - June 11, 2025

Compare Source

NUnit Analyzers 4.9 - June 11, 2025

This release of the NUnit Analyzers adds several new analyzers. For the RangeAttribute,
the analyzers now warn about potential issues at runtime.

It also introduces an analyzer and code fix for translating
Assert.Multiple/Assert.MultipleAsync into the new Assert.EnterMultipleScope format, as well
as for converting is T checks into Is.InstanceOf<T>() constraints.

For NUnit2021, the analyzer now respects UsingPropertiesComparer, including enhancements
that will be available in NUnit 4.4.

Finally, this release includes improvements to NUnit2007, NUnit2045, and NUnit4002.
See the list of resolved issues below for more details.

The release contains contributions from the following users (in alphabetical order):

• @​MaceWindu
• @​manfred-brands
• @​mikkelbu
• @​OsirisTerje
• @​stevenaw

Issues Resolved

Features and Enhancements

• #​880 NUnit2007 could flag typeof() as a constant first parameter
• #​866 When Assert.Multiple is found, should suggest to convert to Assert.EnterMultipleScope
• #​865 NUnit 2045 suggest Assert.Multiple, but should suggest Assert.EnterMultipleScope
• #​857 NUnit2021 Should not raise for UsingPropertiesComparer
• #​765 Add Rule for converting is T into Is.InstanceOf()
• #​89 Test the correct usage of the Range attribute

Bugs

• #​879 NUnit4002 shouldn't trigger for T vs nullable<T> struct types

Tooling, Process, and Documentation

• #​868 chore: bump version

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