Deprecate 'testnet' network id in favor of 'devnet' #4994

Job	Run time
Prepare	2m 4s
Build-And-Test-Web	5m 17s
Run unit tests parallel (1)	53s
Check-mina-commit	20s
Run unit tests parallel (2)	10m 7s
Build-And-Test-Server (Simple integration tests)	10m 7s
Run unit tests parallel (3)	5m 21s
Build-And-Test-Server (Reducer integration tests)	7m 58s
Run unit tests parallel (4)	10m 6s
Build-And-Test-Server (DEX integration tests)	9m 10s
Run unit tests parallel (5)	10m 7s
Build-And-Test-Server (DEX integration test with proofs)	9m 34s
Run unit tests parallel (6)	8m 50s
Build-And-Test-Server (Voting integration tests)	4m 0s
Build-And-Test-Server (Verification Key Regression Check 1)	7m 25s
Run unit tests parallel (7)	7m 18s
Build-And-Test-Server (Verification Key Regression Check 2)	8m 11s
Run unit tests parallel (8)	2m 22s
Build-And-Test-Server (CommonJS test)	1m 28s
Release-mina-signer-on-NPM	1s
Build-And-Test-Server (Unit tests)	1s
Release-on-NPM	1s
	2h 0m 41s

Provide feedback