Update swashbuckle-aspnetcore monorepo to 6.9.0

Directory.Packages.props

@@ -73,8 +73,8 @@
     <PackageVersion Include="SmartAnalyzers.MultithreadingAnalyzer" Version="1.1.31" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.2.0-beta.556" />
     <PackageVersion Include="Svg.Skia" Version="3.0.3" />
-    <PackageVersion Include="Swashbuckle.AspNetCore.ReDoc" Version="6.5.0" />
-    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.2.3" />
+    <PackageVersion Include="Swashbuckle.AspNetCore.ReDoc" Version="6.9.0" />
+    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.9.0" />
     <PackageVersion Include="System.Globalization" Version="4.3.0" />
     <PackageVersion Include="System.Linq.Async" Version="6.0.1" />
     <PackageVersion Include="System.Text.Encoding.CodePages" Version="9.0.5" />