feat(seer-infra-telemetry): Add DatadogIdentityProvider for OAuth2 #268351

Job	Run time
detect what files changed	13s
backend typing	2m 50s
select tests	40s
api docs test	6m 21s
cli test	2m 20s
monolith-dbs test	7m 38s
backend migration tests	10m 3s
check migration	1m 25s
api url typescript generation	0s
requirements check	0s
calculate test shards	12s
backend test (10)	6m 5s
backend test (0)	5m 58s
backend test (4)	5m 36s
backend test (9)	5m 51s
backend test (1)	6m 9s
backend test (3)	5m 47s
backend test (5)	5m 53s
backend test (12)	6m 2s
backend test (11)	5m 31s
backend test (2)	5m 38s
backend test (18)	6m 8s
backend test (17)	6m 3s
backend test (8)	5m 25s
backend test (16)	5m 56s
backend test (7)	6m 20s
backend test (13)	5m 58s
backend test (14)	5m 51s
backend test (20)	5m 56s
backend test (21)	5m 25s
backend test (19)	5m 29s
backend test (6)	6m 7s
backend test (15)	5m 47s
Backend	3s
	2h 40m 40s

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