Bump NUnit3TestAdapter from 4.5.0 to 4.6.0 in /src

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 4.5.0 to 4.6.0.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](nunit/nunit3-vs-adapter@V4.5.0...V4.6.0)

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

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

src/Directory.Packages.props

@@ -11,6 +11,6 @@
         <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
         <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="8.0.0"/>
         <PackageVersion Include="NUnit" Version="4.1.0"/>
-        <PackageVersion Include="NUnit3TestAdapter" Version="4.5.0"/>
+        <PackageVersion Include="NUnit3TestAdapter" Version="4.6.0"/>
     </ItemGroup>
 </Project>