Bump NUnit from 4.1.0 to 4.3.0

Bumps [NUnit](https://github.com/nunit/nunit) from 4.1.0 to 4.3.0.
- [Release notes](https://github.com/nunit/nunit/releases)
- [Changelog](https://github.com/nunit/nunit/blob/main/CHANGES.md)
- [Commits](nunit/nunit@4.1.0...4.3.0)

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

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

Author: dependabot[bot]

SoundShapesServerTests/SoundShapesServerTests.csproj

@@ -12,7 +12,7 @@
     <ItemGroup>
         <PackageReference Include="Bunkum.AutoDiscover" Version="4.5.6" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
-        <PackageReference Include="NUnit" Version="4.1.0" />
+        <PackageReference Include="NUnit" Version="4.3.0" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
         <PackageReference Include="NUnit.Analyzers" Version="4.2.0">
           <PrivateAssets>all</PrivateAssets>