Bump Swashbuckle.AspNetCore.ReDoc from 5.5.1 to 5.6.3

Bumps [Swashbuckle.AspNetCore.ReDoc](https://github.com/domaindrivendev/Swashbuckle.AspNetCore) from 5.5.1 to 5.6.3.
- [Release notes](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/releases)
- [Commits](https://github.com/domaindrivendev/Swashbuckle.AspNetCore/compare/v5.5.1...v5.6.3)

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

Jellyfin.Api/Jellyfin.Api.csproj

@@ -18,7 +18,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="3.1.8" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="5.5.1" />
-    <PackageReference Include="Swashbuckle.AspNetCore.ReDoc" Version="5.5.1" />
+    <PackageReference Include="Swashbuckle.AspNetCore.ReDoc" Version="5.6.3" />
   </ItemGroup>
 
   <ItemGroup>