Deprecate 'testnet' network id in favor of 'devnet' #4941

Job	Run time
Prepare	1m 56s
Build-And-Test-Web	5m 13s
Run unit tests parallel (1)	52s
Check-mina-commit	11s
Run unit tests parallel (2)	19m 10s
Build-And-Test-Server (Simple integration tests)	17m 1s
Run unit tests parallel (3)	5m 14s
Build-And-Test-Server (Reducer integration tests)	7m 58s
Run unit tests parallel (4)	13m 22s
Build-And-Test-Server (DEX integration tests)	9m 7s
Run unit tests parallel (5)	17m 12s
Build-And-Test-Server (DEX integration test with proofs)	9m 41s
Run unit tests parallel (6)	9m 6s
Run unit tests parallel (7)	8m 50s
Run unit tests parallel (8)	2m 23s
Build-And-Test-Server (Voting integration tests)	3m 58s
Build-And-Test-Server (Verification Key Regression Check 1)	7m 30s
Build-And-Test-Server (Verification Key Regression Check 2)	8m 8s
Build-And-Test-Server (CommonJS test)	1m 26s
Build-And-Test-Server (Unit tests)	1s
Release-on-NPM	0s
Release-mina-signer-on-NPM	0s
	2h 28m 19s

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