chore(deps): update dependency microsoft.net.test.sdk to 18.7.0

Author: renovate[bot]

test/Serilog.Sinks.HttpTests/Serilog.Sinks.HttpTests.csproj

@@ -18,7 +18,7 @@
     </PackageReference>
     <PackageReference Include="Markdig" Version="1.3.2" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.9" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.7.0" />
     <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="10.0.1" />
     <PackageReference Include="Shouldly" Version="4.3.0" />