Bump Swashbuckle.AspNetCore from 6.5.0 to 6.7.0 in /webapi

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.5.0 to 6.7.0.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.5.0...v6.7.0)

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

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

webapi/CopilotChatWebApi.csproj

@@ -34,7 +34,7 @@
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.OpenApi" Version="1.5.0-alpha" />
     <PackageReference Include="Microsoft.SemanticKernel.Plugins.Web" Version="1.5.0-alpha" />
     <PackageReference Include="SharpToken" Version="1.2.17" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.5.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.7.0" />
   </ItemGroup>
 
   <ItemGroup>