chore(deps): update dependency microsoft.aspnetcore.mvc.testing to 9.0.3

Author: renovate[bot]

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

@@ -17,7 +17,7 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Markdig" Version="0.40.0" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.2" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.3" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.13.0" />
     <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
     <PackageReference Include="Serilog.Settings.Configuration" Version="9.0.0" />