Bump NServiceBus in /src in the nservicebuscore group

Bumps the nservicebuscore group in /src with 1 update: [NServiceBus](https://github.com/Particular/NServiceBus).


Updates `NServiceBus` from 9.2.3 to 9.2.6
- [Release notes](https://github.com/Particular/NServiceBus/releases)
- [Commits](Particular/NServiceBus@9.2.3...9.2.6)

---
updated-dependencies:
- dependency-name: NServiceBus
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: nservicebuscore
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/NServiceBus.Storage.MongoDB/NServiceBus.Storage.MongoDB.csproj

@@ -1,12 +1,12 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="MongoDB.Driver" Version="2.28.0" />
-    <PackageReference Include="NServiceBus" Version="9.2.3" />
+    <PackageReference Include="NServiceBus" Version="9.2.6" />
     <PackageReference Include="Particular.Packaging" Version="4.2.0" PrivateAssets="All" />
   </ItemGroup>