Bump PublicApiGenerator from 11.4.0 to 11.4.1 in /src

Bumps [PublicApiGenerator](https://github.com/PublicApiGenerator/PublicApiGenerator) from 11.4.0 to 11.4.1.
- [Release notes](https://github.com/PublicApiGenerator/PublicApiGenerator/releases)
- [Commits](PublicApiGenerator/PublicApiGenerator@11.4.0...11.4.1)

---
updated-dependencies:
- dependency-name: PublicApiGenerator
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

src/Tests/NServiceBus.Encryption.MessageProperty.Tests.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="NUnit.Analyzers" Version="4.6.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageReference Include="Particular.Approvals" Version="2.0.1" />
-    <PackageReference Include="PublicApiGenerator" Version="11.4.0" />
+    <PackageReference Include="PublicApiGenerator" Version="11.4.1" />
   </ItemGroup>
 
 </Project>