chore: update appVersion to 2.1.9 #91

Job	Run time
Build and run SIP Connect Compliance Tests	8m 32s
Publish to Docker Hub / Download Artifacts	1m 33s
Publish to Docker Hub / Publish Location to Docker Hub	2m 8s
Publish to Docker Hub / Publish EdgePort to Docker Hub	54s
Publish to Docker Hub / Publish Routr One to Docker Hub	1m 40s
Publish to Docker Hub / Publish Dispatcher to Docker Hub	2m 8s
Publish to Docker Hub / Publish Simpledata to Docker Hub	4m 51s
Publish to Docker Hub / Publish Connect to Docker Hub	2m 29s
Publish to Docker Hub / Publish Registry to Docker Hub	3m 13s
Publish to Docker Hub / Publish the Postgres DB Migrations image	2m 35s
Publish to Docker Hub / Publish the PGData image	5m 17s
Publish to Docker Hub / Publish Requester to Docker Hub	55s
Publish to Docker Hub / Publish the Echo image	1m 57s
Publish to Docker Hub / Publish the RTPrelay image	3m 47s
	41m 59s

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