Fix timestamp checks & check versions during upgrades

[AndriianChestnykh]

• Fix timestamp checks
• Update script to check contracts with unified addresses and include checks for contracts version

  npx hardhat run scripts/maintenance/multi-chain/checkUnifiedContracts.ts

• Update upgrade scripts and check if the version is already upgraded

[coveralls]

Pull Request Test Coverage Report for Build 11574802368

Details

• 17 of 19 (89.47%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 84.89%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
contracts/state/State.sol	17	19	89.47%
<!--	Total:	17	19	89.47%	-->

Totals
Change from base Build 11501889045:	0.1%
Covered Lines:	958
Relevant Lines:	1057

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💛 - Coveralls