Authorization header missing "Bearer" required for modern CTFd instances

[sadkris]

Title really says it all, CTFd was updated to require a Bearer marker in the authorization header when using access keys. The current version of the script just does Authorization: <key>, so fails to receive any data from the server.

[sadkris]

Lol was about to make a PR for this but didn't even realize somebody already did here, and I just never bothered checking before opening the issue