chore(deps): update dependency nunit3testadapter to v4 (#772)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

tests/System.IO.Abstractions.TestingHelpers.Tests/System.IO.Abstractions.TestingHelpers.Tests.csproj

@@ -36,7 +36,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="Moq" Version="4.16.1" />
     <PackageReference Include="nunit" Version="3.13.2" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.1.0" />
   </ItemGroup>
   <ItemGroup>
     <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />

tests/System.IO.Abstractions.Tests/System.IO.Abstractions.Tests.csproj

@@ -20,7 +20,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
     <PackageReference Include="Moq" Version="4.16.1" />
     <PackageReference Include="nunit" Version="3.13.2" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.1.0" />
     <PackageReference Include="Snapshooter.NUnit" Version="0.7.1" />
   </ItemGroup>
 </Project>