Bump Swashbuckle.AspNetCore from 6.7.3 to 6.8.0 in /src/WebApiTemplate (

#327)

Bumps [Swashbuckle.AspNetCore](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.7.3 to 6.8.0.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](domaindrivendev/Swashbuckle.AspNetCore@v6.7.3...v6.8.0)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/WebApiTemplate/Directory.Packages.props

@@ -20,7 +20,7 @@
   <!-- ASP.NET Core Package Versions -->
   <ItemGroup>
     <PackageVersion Include="Microsoft.AspNetCore.OpenApi" Version="8.0.8" />
-    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.7.3" />
+    <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.8.0" />
     <PackageVersion Include="Microsoft.Extensions.Hosting" Version="8.0.0" />
   </ItemGroup>