Flags field is dropped in SectorOnChainInfo conversions

[hanabi1224]

Checklist

• This is not a security-related bug/issue. If it is, please follow please follow the security policy.
• I have searched on the issue tracker and the lotus forum, and there is no existing related issue or discussion.
• I am running the Latest release, the most recent RC(release canadiate) for the upcoming release or the dev branch(master), or have an issue updating to any of these.
• I did not make any code changes to lotus.

Lotus component

• lotus daemon - chain sync
• lotus fvm/fevm - Lotus FVM and FEVM interactions
• lotus miner/worker - sealing
• lotus miner - proving(WindowPoSt/WinningPoSt)
• lotus JSON-RPC API
• lotus message management (mpool)
• Other

Lotus Version

lotus version 1.27.0-dev+calibnet+git.10f7b6ed5

Repro Steps

The Flags field is not converted in the code at https:/filecoin-project/lotus/blob/master/chain/actors/builtin/miner/v12.go#L533

func fromV12SectorOnChainInfo(v12 miner12.SectorOnChainInfo) SectorOnChainInfo {
	info := SectorOnChainInfo{
		SectorNumber:          v12.SectorNumber,
		SealProof:             v12.SealProof,
		SealedCID:             v12.SealedCID,
		DealIDs:               v12.DealIDs,
		Activation:            v12.Activation,
		Expiration:            v12.Expiration,
		DealWeight:            v12.DealWeight,
		VerifiedDealWeight:    v12.VerifiedDealWeight,
		InitialPledge:         v12.InitialPledge,
		ExpectedDayReward:     v12.ExpectedDayReward,
		ExpectedStoragePledge: v12.ExpectedStoragePledge,

		SectorKeyCID: v12.SectorKeyCID,

		PowerBaseEpoch:    v12.PowerBaseEpoch,
		ReplacedDayReward: v12.ReplacedDayReward,
	}
	return info
}

Describe the Bug

When posting the below payload to http://localhost:1234/rpc/v0

{"jsonrpc":"2.0","id":0,"method":"Filecoin.StateSectorGetInfo","params":
["f04040",102,[{"/":"bafy2bzacedbmki5e4olfcdkruq7qjh7xj4yg6wbcqsiqw2ez7kngiywbdsge4"},{"/":"bafy2bzacebbntlxgcsdq2mjg23lf6fjwbugsbx52umyur3yyhszganidni2p2"}]]
}

Flags should be 1 in the response.

Logging Information

N/A

[rvagg]

#11963