Bump NUnit3TestAdapter from 5.2.0 to 6.0.0

---
updated-dependencies:
- dependency-name: NUnit3TestAdapter
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

eFormAPI/Plugins/BackendConfiguration.Pn/BackendConfiguration.Pn.Test/BackendConfiguration.Pn.Test.csproj

@@ -15,7 +15,7 @@
         <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         <PrivateAssets>all</PrivateAssets>
       </PackageReference>
-      <PackageReference Include="NUnit3TestAdapter" Version="5.2.0" />
+      <PackageReference Include="NUnit3TestAdapter" Version="6.0.0" />
       <PackageReference Include="Testcontainers" Version="4.8.1" />
       <PackageReference Include="Testcontainers.MariaDb" Version="4.8.1" />
     </ItemGroup>