feat: Drop `adminClient` (2/2) #2937

Job	Run time
Check file changes	4s
Build React App	6m 45s
E2E tests	14m 39s
Generate Hasura Change Summary	0s
Run API Tests	3m 6s
Run React Tests	0s
Run Integration tests	8m 19s
Upsert Vultr Instance	21m 26s
Run Pulumi Preview	0s
Run Healthcheck on Pizza Services	34s
	54m 53s

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