Adapt to required CoglContext params

Bilal Elmoussaouirequested to merge
bilelmoussaoui/cogl-context into main

They used to retrieve it from a global variable which we are trying to remove upstream

Mutter side mutter!3857 (merged)

Turned into a draft until I get back into figuring out the failed tests

Edited by Bilal Elmoussaoui

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