Update dependency NUnit.Console to v3.15.2

Author: renovate[bot]

src/OpenInApp.Common.Tests/OpenInApp.Common.Tests.csproj

@@ -165,7 +165,7 @@
       <Version>3.6.1</Version>
     </PackageReference>
     <PackageReference Include="NUnit.Console">
-      <Version>3.6.1</Version>
+      <Version>3.15.2</Version>
     </PackageReference>
     <PackageReference Include="NUnit.Runners">
       <Version>2.6.3</Version>