Add fail fast for Arbitrum One Mainnet when LIP-73 has not been activated yet

[leszko]

Temporarily add fail fast for Arbitrum One Mainnet when LIP-73 has not been activated yet.

What does this pull request do? Explain your changes. (required)

Specific updates (required)

How did you test each of these updates (required)

1. Tried to run on Arbitrum One Mainnet.

$ ./livepeer -network some-network -ethUrl https://arb1.arbitrum.io/rpc -orchestrator -transcoder
I0210 11:27:16.716149   90877 livepeer.go:260] ***Livepeer is running on the some-network network***
E0210 11:27:17.675315   90877 livepeer.go:436] LIP-73 has not been activated yet

Changed lip37Block to the current Mainnet block number 14177801

$ ./livepeer -network some-network-2 -ethUrl https://arb1.arbitrum.io/rpc -orchestrator -transcoder
I0210 11:29:51.028816   91068 livepeer.go:260] ***Livepeer is running on the some-network-2 network***
I0210 11:29:52.149630   91068 accountmanager.go:72] Using Ethereum account: 0x416BE189c67c58257E8867cdB41d55986127E76f
I0210 11:29:52.647704   91068 accountmanager.go:95] Please enter the passphrase to unlock Ethereum account 0x416BE189c67c58257E8867cdB41d55986127E76f
Passphrase: 
I0210 11:29:55.646791   91068 accountmanager.go:106] Unlocked ETH account: 0x416BE189c67c58257E8867cdB41d55986127E76f
E0210 11:29:55.825268   91068 client.go:198] Error getting LivepeerToken address: execution reverted
E0210 11:29:55.825300   91068 livepeer.go:496] Failed to set gas info on Livepeer Ethereum Client: execution reverted

Does this pull request close any open issues?

fix #2247

Checklist:

• Read the contribution guide
• make runs successfully
• All tests in ./test.sh pass
• README and other documentation updated
• Pending changelog updated

[yondonfu]

LGTM after fixing the typo

[yondonfu]

Suggested change

	lip37Block := big.NewInt(14207040)
	lip73Block := big.NewInt(14207040)

[leszko]

Updated