Bump nunit from 4.2.1 to 4.2.2 in /UnitTests (#354)

Bumps [nunit](https://github.com/nunit/nunit) from 4.2.1 to 4.2.2.
- [Release notes](https://github.com/nunit/nunit/releases)
- [Changelog](https://github.com/nunit/nunit/blob/main/CHANGES.md)
- [Commits](nunit/nunit@4.2.1...4.2.2)

---
updated-dependencies:
- dependency-name: nunit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

UnitTests/UnitTests.csproj

@@ -9,7 +9,7 @@
     <NoWarn>NUnit2045</NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="nunit" Version="4.2.1" />
+    <PackageReference Include="nunit" Version="4.2.2" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
     <PackageReference Include="NUnit.Analyzers" Version="4.3.0" PrivateAssets="All" />