fix: cli: --max-piece-size in set-ask is no longer required

[geoff-vball]

Related Issues

Closes issue #7963

Checklist

Before you mark the PR ready for review, please make sure that:

• 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 #8361 (5ba4a78) into master (1609317) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8361      +/-   ##
==========================================
- Coverage   40.26%   40.24%   -0.03%     
==========================================
  Files         683      683              
  Lines       74479    74479              
==========================================
- Hits        29988    29972      -16     
- Misses      39264    39277      +13     
- Partials     5227     5230       +3     

Impacted Files	Coverage Δ
cmd/lotus-miner/market.go	22.17% <ø> (ø)
markets/loggers/loggers.go	89.28% <0.00%> (-10.72%)	⬇️
storage/wdpost_sched.go	77.45% <0.00%> (-9.81%)	⬇️
chain/exchange/peer_tracker.go	66.66% <0.00%> (-4.31%)	⬇️
chain/stmgr/call.go	69.18% <0.00%> (-3.25%)	⬇️
chain/sub/incoming.go	45.25% <0.00%> (-2.45%)	⬇️
itests/kit/blockminer.go	69.56% <0.00%> (-1.09%)	⬇️
storage/wdpost_changehandler.go	97.64% <0.00%> (-0.95%)	⬇️
storage/wdpost_run.go	69.91% <0.00%> (-0.61%)	⬇️
chain/consensus/filcns/filecoin.go	52.17% <0.00%> (-0.44%)	⬇️
... and 13 more