[YouTube] Update clients version and improve extraction of API key and client version of WEB client#890

TobiGr merged 5 commits intoTeamNewPipe:devTeamNewPipe/NewPipeExtractor:devfrom

AudricV:yt-clients-update-improvements-and-extraction-fixesAudricV/NewPipeExtractor:yt-clients-update-improvements-and-extraction-fixesCopy head branch name to clipboard