chore(deps): update dependency microsoft.net.test.sdk to 18.5.1 (#661)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tests/oidc-guard-tests/oidc-guard-tests.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="Duende.IdentityModel.OidcClient" Version="7.1.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.7" />
     <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="10.0.7" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="Microsoft.Playwright" Version="1.59.0" />
     <PackageReference Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.6.2" />
     <PackageReference Include="Moq" Version="4.20.72" />