Getter for CcipSteward Timelock

[DhairyaSethi]

Feature Request

Currently there exists no public getter for the timelock state in GhoCcipSteward, while it is an unlikely requirement on-chain to be queried for any conditional logic, a getter can help existing RiskCouncil operators to easily get access to this data.
For reference, this value can be obtained on existing stewards w/o this offchain through: (pseudocode)

    uint256 ccipDebounceValue = uint256(vm.load(address(GHO_CCIP_STEWARD), bytes32(0)));
    IGhoCcipSteward.CcipDebounce memory ccipDebounce = IGhoCcipSteward.CcipDebounce({
      bridgeLimitLastUpdate: uint40(ccipDebounceValue >> 216),
      rateLimitLastUpdate: uint40(ccipDebounceValue >> 176)
    });