chore: update DEFAULT_ZKSYNC_OS_VERIFIER_VERSION to 6

[antonbaliasnikov]

What ❔

• update DEFAULT_ZKSYNC_OS_VERIFIER_VERSION to 6

Checklist

• PR title corresponds to the body of PR (we generate changelog entries from PRs).
• Tests for the changes have been added / updated.
• Documentation comments have been added / updated.

[github-actions]

Coverage after merging aba-update-execution-version into zksync-os-stable will be

80.13%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
contracts/bridge
BridgeHelper.sol	85.71%	100%	100%	85%	31, 36, 41
BridgedStandardERC20.sol	82.14%	100%	92.31%	80.28%	120–121, 126–127, 139–140, 164, 205, 212, 219, 229–230, 63, 91
L1ERC20Bridge.sol	94%	100%	100%	93.02%	189, 208, 270
L1Nullifier.sol	83.33%	100%	86.21%	82.89%	115, 129–131, 161, 222, 225, 235, 238, 248, 251, 419–421, 425–426, 453, 519, 603, 615, 653, 655, 699, 711, 714, 716, 729, 742–743, 747–748, 768
contracts/bridge/asset-router
AssetRouterBase.sol	97.14%	100%	100%	96.55%	67
L1AssetRouter.sol	88.17%	100%	89.29%	87.97%	106, 232, 270, 286, 373, 384, 415, 454–455, 469, 500, 572, 661, 672, 686, 691, 74, 90, 98
contracts/bridge/interfaces
AssetHandlerModifiers.sol	75%	100%	100%	66.67%	13
contracts/bridge/ntv
L1NativeTokenVault.sol	86.72%	100%	90.48%	85.98%	172–178, 180, 248–249, 251, 262, 264, 270, 94
NativeTokenVaultBase.sol	89.08%	100%	91.67%	88.67%	222, 227, 244, 262, 267, 283, 302, 310, 479, 494, 522, 555–556, 560–561, 74, 90
UpgradeableBeaconDeployer.sol	0%	100%	0%	0%	15–16, 18, 20–21
contracts/bridgehub
BridgehubBase.sol	79.41%	100%	80.56%	79.17%	128, 133, 135–136, 141–143, 150, 168, 208–209, 218, 233, 272, 275, 294, 310, 341, 459, 463, 467–468, 487, 490, 546, 550, 553, 588–589, 593–594, 602–603, 607–608
CTMDeploymentTracker.sol	73.47%	100%	81.82%	71.05%	107, 111, 115, 140, 144–145, 33, 41, 66, 79–80
ChainAssetHandlerBase.sol	69.39%	100%	66.67%	69.77%	116, 133, 136, 148–149, 194, 211–212, 216–217, 76, 83–84
L1Bridgehub.sol	88.14%	100%	92.31%	87.62%	101, 111, 123, 240, 313, 317–318, 321, 63–64, 87, 91–92
L1ChainAssetHandler.sol	81.82%	100%	75%	84%	39–40, 48–49
L1MessageRoot.sol	78.57%	100%	75%	80%	36–37
L2Bridgehub.sol	80.56%	100%	75%	82.14%	106, 63, 79–80, 91
L2ChainAssetHandler.sol	80.65%	100%	75%	82.61%	47–48, 70, 94
L2MessageRoot.sol	34.38%	100%	50%	30.77%	39–40, 43–44, 50, 68, 74–75, 79, 81, 83, 86–87, 89, 93–96
L2MessageVerification.sol	100%	100%	100%	100%
MessageRootBase.sol	58.18%	100%	70%	55.56%	100–102, 108–110, 119, 131, 141, 146–151, 153–157
contracts/common
ReentrancyGuard.sol	95%	100%	100%	94.12%	79
contracts/common/l2-helpers
L2ContractHelper.sol	84.91%	100%	100%	82.22%	102, 108, 112, 129, 134, 73, 79, 83
SystemContractsCaller.sol	0%	100%	0%	0%	102, 114, 122–125, 128, 135–139, 141–142, 32–34, 37, 44–45, 47, 49, 51, 53, 66, 69, 72, 75, 78, 83, 89, 91, 93, 96, 98
contracts/common/libraries
DataEncoding.sol	85.11%	100%	100%	81.58%	109–110, 117–118, 163, 177, 45
DynamicIncrementalMerkle.sol	73.91%	100%	80%	73.17%	66–70, 72–74, 76–78
FullMerkle.sol	100%	100%	100%	100%
Merkle.sol	98.15%	100%	100%	97.96%	83
MessageHashing.sol	95.16%	100%	100%	94.64%	113, 77, 94
SemVer.sol	100%	100%	100%	100%
UncheckedMath.sol	100%	100%	100%	100%
UnsafeBytes.sol	100%	100%	100%	100%
ZKSyncOSBytecodeInfo.sol	50%	100%	50%	50%	30, 33
contracts/governance
AccessControlRestriction.sol	100%	100%	100%	100%
ChainAdmin.sol	97.87%	100%	100%	97.30%	39
ChainAdminOwnable.sol	44.83%	100%	40%	45.83%	28, 38–40, 46–48, 57, 66, 77–79, 81
Governance.sol	100%	100%	100%	100%
L2ProxyAdminDeployer.sol	0%	100%	0%	0%	16–18, 20
PermanentRestriction.sol	88.80%	100%	100%	87.39%	104, 111–112, 200–201, 204–205, 208, 210–211, 240, 288, 310, 341
ServerNotifier.sol	93.10%	100%	100%	90.91%	55, 65
TransitionaryOwner.sol	0%	100%	0%	0%	16–17, 21–23
contracts/governance/restriction
Restriction.sol	100%	100%	100%	100%
RestrictionValidator.sol	100%	100%	100%	100%
contracts/l2-upgrades
L2ComplexUpgrader.sol	0%	100%	0%	0%	23–25, 39, 44, 46, 56, 62–63, 70, 79–81, 84, 86–87
L2GenesisForceDeploymentsHelper.sol	0%	100%	0%	0%	100, 102–103, 108–110, 114, 124, 129–134, 136, 148, 156, 160, 165, 174–175, 178, 185–186, 189, 194–195, 201, 209, 213, 218, 220, 230, 239, 242, 247, 257, 263–264, 267, 270, 276, 280, 284, 295, 304, 309, 311, 319, 330, 344, 350, 370, 378–379, 38, 382–383, 385, 39, 392, 399, 40–41, 49, 52–53, 58, 64–66, 70–72, 78–79, 82–83, 85, 87–88, 94, 96
L2GenesisUpgrade.sol	0%	100%	0%	0%	24, 31–32, 37–38, 42, 50