fix: sealing: add flag usage

[jennijuju]

Related Issues

fixes #8106 (comment)

Proposed Changes

Additional Info

Checklist

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• All commits have a clear commit message.
• The PR title is in the form of of <PR type>: <area>: <change being made>
  • example: fix: mempool: Introduce a cache for valid signatures
  • PR type: fix, feat, INTERFACE BREAKING CHANGE, CONSENSUS BREAKING, build, chore, ci, docs,perf, refactor, revert, style, test
  • area: api, chain, state, vm, data transfer, market, mempool, message, block production, multisig, networking, paychan, proving, sealing, wallet, deps
• This PR has tests for new functionality or change in behaviour
• If new user-facing features are introduced, clear usage guidelines and / or documentation updates should be included in https://lotus.filecoin.io or Discussion Tutorials.
• CI is green

[codecov]

Codecov Report

Merging #8189 (433f9f8) into release/v1.14.3 (a65386b) will decrease coverage by 0.12%.
The diff coverage is n/a.

@@                 Coverage Diff                 @@
##           release/v1.14.3    #8189      +/-   ##
===================================================
- Coverage            39.40%   39.27%   -0.13%     
===================================================
  Files                  657      657              
  Lines                71070    71070              
===================================================
- Hits                 28006    27914      -92     
- Misses               38233    38296      +63     
- Partials              4831     4860      +29     

Impacted Files	Coverage Δ
cmd/lotus-miner/sectors.go	13.97% <ø> (ø)
markets/loggers/loggers.go	89.28% <0.00%> (-10.72%)	⬇️
miner/miner.go	52.13% <0.00%> (-9.51%)	⬇️
chain/events/observer.go	71.64% <0.00%> (-8.21%)	⬇️
chain/stmgr/call.go	67.87% <0.00%> (-7.28%)	⬇️
markets/retrievaladapter/client_blockstore.go	62.50% <0.00%> (-6.25%)	⬇️
chain/stmgr/tracers.go	84.21% <0.00%> (-5.27%)	⬇️
chain/exchange/peer_tracker.go	66.66% <0.00%> (-4.31%)	⬇️
chain/vm/mkactor.go	48.48% <0.00%> (-3.04%)	⬇️
storage/wdpost_sched.go	75.49% <0.00%> (-1.97%)	⬇️
... and 13 more

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