Remove devexp from proto package names (#118) #342

Job	Run time
Counter Extension Test	2m 42s
Storage Extension Test	2m 52s
Build and Unit Test	10m 40s
Gateway Integration Test	5m 2s
E2E Integration Test	4m 30s
Orchestrator Integration Test	5m 6s
Queue Extension Test	5m 21s
Required Checks	3s
	36m 16s

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