Update dependency ReactiveUI.WPF to v23 #8906

Job	Run time
windows-installers / build	4m 17s
containers / servicecontrol	2m 29s
containers / servicecontrol-monitoring	1m 54s
db-container / db-container	1m 23s
containers / servicecontrol-audit	2m 4s
Windows-AzureStorageQueues	4m 26s
Windows-SQS	3m 48s
Windows-RabbitMQ	3m 46s
Windows-MSMQ	3m 43s
Linux-SqlServer	2m 6s
Windows-SqlServer	3m 44s
Windows-PrimaryRavenAcceptance	4m 16s
Windows-AzureServiceBus	4m 6s
Linux-RabbitMQ	2m 8s
Linux-AzureStorageQueues	1m 49s
Linux-Default	2m 2s
Windows-PostgreSQL	3m 46s
Windows-Default	3m 55s
Linux-AzureServiceBus	2m 8s
Linux-PrimaryRavenAcceptance	2m 0s
Linux-SQS	2m 1s
Linux-IBMMQ	1m 59s
Linux-PostgreSQL	2m 33s
Windows-PrimaryRavenPersistence	3m 50s
Linux-PrimaryRavenPersistence	1m 51s
container-test / asb	2m 58s
container-test / sqs	1m 54s
container-test / asq	2m 50s
container-test / rabbit	1m 35s
container-test / postgresql	1m 42s
container-test / mssql	1m 41s
	1h 24m 44s

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