Changes to Upload upcoming contests for the current SkyBlock year

api operation id EliteAPIFeaturesContestsUploadCurrentContestsUploadCurrentContestsEndpoint removed and replaced with UploadCurrentContests

request body became required

removed the media type application/*+json from the request body

removed the media type text/json from the request body

removed the success response with the status 200

api operation id EliteAPIFeaturesContestsUploadCurrentContestsUploadCurrentContestsEndpoint was added

removed the non-success response with the status 400

added the success response with the status 204

endpoint added