chore: Drop even more deprecated stuff #6656

Job	Run time
GraphQL (pinned) (3.7, ubuntu-22.04)	1m 52s
GraphQL (pinned) (3.8, ubuntu-22.04)	2m 22s
GraphQL (pinned) (3.9, ubuntu-22.04)	2m 31s
GraphQL (pinned) (3.10, ubuntu-22.04)	2m 25s
GraphQL (pinned) (3.11, ubuntu-22.04)	2m 1s
GraphQL (pinned) (3.12, ubuntu-22.04)	3m 14s
GraphQL (pinned) (3.13, ubuntu-22.04)	3m 21s
All pinned GraphQL tests passed	1s
	17m 47s

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