Bump NUnit3TestAdapter from 4.2.1 to 4.6.0 in /src

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 4.2.1 to 4.6.0.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](nunit/nunit3-vs-adapter@V4.2.1...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>

Author: dependabot[bot]

test/WalletFramework.MdocVc.Tests/WalletFramework.MdocVc.Tests.csproj

@@ -12,7 +12,7 @@
         <PackageReference Include="FluentAssertions" Version="6.12.0"/>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
         <PackageReference Include="NUnit" Version="3.13.3"/>
-        <PackageReference Include="NUnit3TestAdapter" Version="4.2.1"/>
+        <PackageReference Include="NUnit3TestAdapter" Version="4.6.0"/>
         <PackageReference Include="NUnit.Analyzers" Version="3.3.0"/>
         <PackageReference Include="xunit" Version="2.9.0" />
     </ItemGroup>