Update dependency Microsoft.Extensions.Diagnostics.Testing to 10.3.0

Author: dependencyupdates[bot]

src/NServiceBus.Envelope.CloudEvents.Tests/NServiceBus.Envelope.CloudEvents.Tests.csproj

@@ -12,7 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="GitHubActionsTestLogger" Version="3.0.1" />
-    <PackageReference Include="Microsoft.Extensions.Diagnostics.Testing" Version="10.2.0" />
+    <PackageReference Include="Microsoft.Extensions.Diagnostics.Testing" Version="10.3.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageReference Include="NUnit" Version="4.5.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="6.1.0" />