feat: bump Firebase android BOM to `v33.7.0` #677

Job	Run time
web (tests)	5m 38s
web (packages/cloud_firestore/cloud_firestore/example)	4m 56s
web-app-check	2m 29s
web-wasm (tests)	4m 24s
web-wasm (packages/cloud_firestore/cloud_firestore/example)	4m 31s
	21m 58s

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