feat(deletion): revoke fxa tokens when deleting accounts #770

Job	Run time
apollo / check-or-publish	15s
infrastructure / apply	0s
apollo-admin / check-or-publish	22s
infrastructure / plan	1m 30s
test-integrations / main	3m 30s
api / pull-request	2m 1s
api / development	0s
api / production	0s
sentry	0s
	7m 38s

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