Bump Swashbuckle.AspNetCore.ReDoc from 6.1.5 to 6.2.1

Bumps [Swashbuckle.AspNetCore.ReDoc](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 6.1.5 to 6.2.1.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/compare/v6.1.5...v6.2.1)

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

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

Jellyfin.Api/Jellyfin.Api.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Authorization" Version="5.0.9" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.2.1" />
-    <PackageReference Include="Swashbuckle.AspNetCore.ReDoc" Version="6.1.5" />
+    <PackageReference Include="Swashbuckle.AspNetCore.ReDoc" Version="6.2.1" />
   </ItemGroup>
 
   <ItemGroup>