Update to ERC7741 spec + add message to update hook

[github-actions[bot]]

Coverage after merging authorize-operator-erc into main will be

96.26%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
Auth.sol	100%	100%	100%	100%
CentrifugeRouter.sol	91.22%	58.33%	96.43%	93.52%	107, 107, 202, 202, 31–33, 35–36, 41, 48, 77
ERC7540Vault.sol	97.40%	100%	95.65%	98.11%	276, 418
Escrow.sol	100%	100%	100%	100%
InvestmentManager.sol	94.38%	88.10%	90.70%	96.70%	190, 199, 208, 217, 225, 234, 38–39, 41–42, 569
PoolManager.sol	88.89%	66.67%	81.48%	95.06%	122, 124, 126, 128, 137, 139, 147, 149, 153, 160, 162–164, 167, 330, 56–58, 60–61
Root.sol	92.42%	62.50%	92.86%	97.73%	115, 117, 119, 124
src/admin
Guardian.sol	100%	100%	100%	100%
src/factories
ERC7540VaultFactory.sol	100%	100%	100%	100%
TrancheFactory.sol	100%	100%	100%	100%
TransferProxyFactory.sol	100%	100%	100%	100%
src/gateway
GasService.sol	100%	100%	100%	100%
Gateway.sol	95.81%	95.65%	94.12%	96.05%	221, 226, 45–48, 50–51
src/gateway/adapters/axelar
Adapter.sol	100%	100%	100%	100%
Forwarder.sol	77.78%	100%	75%	75%	30, 32–33
src/token
ERC20.sol	96.43%	83.33%	100%	98.33%	68–70
RestrictionManager.sol	93.22%	75%	100%	97.22%	92–95
Tranche.sol	90.20%	100%	83.33%	93.10%	152, 157