Bump Swashbuckle.AspNetCore from 6.7.3 to 6.9.0

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.7.3 to 6.9.0.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.7.3...v6.9.0)

---
updated-dependencies:
- dependency-name: Swashbuckle.AspNetCore
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -84,7 +84,7 @@
     <PackageVersion Include="MediatR" Version="12.4.1" />
     <PackageVersion Include="Microsoft.Web.LibraryManager.Build" Version="2.1.175" />
     <PackageVersion Include="Polly" Version="8.4.0" />
-    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.7.3" />
+    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.9.0" />
     <PackageVersion Include="System.Reflection.TypeExtensions" Version="4.7.0" />
     <PackageVersion Include="xunit" Version="2.9.0" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="2.8.2" />