Bump NUnit3TestAdapter from 4.2.1 to 4.3.0 in /tests/NHapi.NUnit

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 4.2.1 to 4.3.0.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](nunit/nunit3-vs-adapter@V4.2.1...V4.3.0)

---
updated-dependencies:
- dependency-name: NUnit3TestAdapter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

tests/NHapi.NUnit/NHapi.NUnit.csproj

@@ -32,7 +32,7 @@
 
   <ItemGroup>
     <PackageReference Include="NUnit" Version="3.13.3" />
-    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.3.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.2" />
     <PackageReference Include="coverlet.collector" Version="3.2.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>