Update IdentityModel to 8.19.2 #9296

Job	Run time
windows-installers / build	2m 16s
containers / servicecontrol-monitoring	57s
containers / servicecontrol-audit	1m 19s
containers / servicecontrol	56s
db-container / db-container	1m 7s
Linux-SqlServer	46s
Linux-RabbitMQ	39s
Linux-SQS	43s
Windows-AzureServiceBus	1m 42s
Windows-PrimaryRavenAcceptance	1m 57s
Linux-IBMMQ	42s
Linux-AzureStorageQueues	47s
Linux-PostgreSQL	47s
Linux-PrimaryRavenAcceptance	45s
Linux-PrimaryRavenPersistence	56s
Windows-Default	2m 45s
Windows-AzureStorageQueues	2m 53s
Windows-PrimaryRavenPersistence	1m 55s
Windows-SqlServer	1m 46s
Linux-AzureServiceBus	48s
Windows-RabbitMQ	1m 56s
Windows-MSMQ	1m 51s
Windows-SQS	1m 40s
Linux-Default	44s
Windows-PostgreSQL	1m 49s
container-test	0s
	34m 26s

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