Bump NUnit from 3.14.0 to 4.6.1

---
updated-dependencies:
- dependency-name: NUnit
  dependency-version: 4.6.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -8,7 +8,7 @@
 		<PackageVersion  Include="Microsoft.Extensions.Caching.Memory" Version="6.0.1" />
 		<PackageVersion  Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
 		<PackageVersion  Include="Moq" Version="4.18.1" />
-		<PackageVersion  Include="NUnit" Version="3.14.0" />
+		<PackageVersion  Include="NUnit" Version="4.6.1" />
 		<PackageVersion  Include="NUnit3TestAdapter" Version="4.5.0" />
 		<PackageVersion  Include="RichardSzalay.MockHttp" Version="6.0.0" />
 		<PackageVersion  Include="SimpleLogInterface" Version="3.0.1" />