Replace fixtures in DeviceTokensController tests. #9901

Job	Run time
Migration Tests	2m 8s
Api Tests (Py 3.10)	9m 29s
Core Tests (Py 3.10)	7m 47s
Api Tests (Py 3.11)	9m 20s
Docker migration test	2m 43s
Core Tests (Py 3.11)	8m 25s
Docker build	56s
Docker test circ-scripts (linux/amd64)	2m 18s
Docker test circ-webapp (linux/amd64)	2m 29s
Docker test circ-scripts (linux/arm64)	3m 27s
Docker test circ-webapp (linux/arm64)	4m 7s
Push circ-scripts	1m 22s
Push circ-webapp	1m 26s
Push circ-exec	1m 37s
	57m 34s

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