Bump NUnit3TestAdapter in /csharp/unit-testing/NUnit.TestProject (#3730)

Bumps [NUnit3TestAdapter](https://github.com/nunit/nunit3-vs-adapter) from 3.16.1 to 3.17.0.
- [Release notes](https://github.com/nunit/nunit3-vs-adapter/releases)
- [Commits](nunit/nunit3-vs-adapter@V3.16.1...V3.17)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

csharp/unit-testing/NUnit.TestProject/NUnit.Project.csproj

@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="NUnit" Version="3.12.0" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
   </ItemGroup>