Update dependency NUnit.Analyzers to 4.15.0 (#5888)

Co-authored-by: dependencyupdates[bot] <218638057+dependencyupdates[bot]@users.noreply.github.com>

Author: dependencyupdates[bot]

src/Directory.Packages.props

@@ -62,7 +62,7 @@
     <PackageVersion Include="NServiceBus.Transport.IBMMQ" Version="1.0.1" />
     <PackageVersion Include="NuGet.Versioning" Version="7.9.0" />
     <PackageVersion Include="NUnit" Version="4.6.1" />
-    <PackageVersion Include="NUnit.Analyzers" Version="4.14.0" />
+    <PackageVersion Include="NUnit.Analyzers" Version="4.15.0" />
     <PackageVersion Include="NUnit3TestAdapter" Version="6.3.0" />
     <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.18.0" />
     <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.18.0" />