fix: piece provider: Don't log CIDs as binary

[magik6k]

Related Issues

Fixes #8107

Proposed Changes

Additional Info

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 #8287 (91ccb7f) into master (326a9b6) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #8287      +/-   ##
==========================================
- Coverage   40.53%   40.50%   -0.04%     
==========================================
  Files         675      675              
  Lines       73527    73527              
==========================================
- Hits        29805    29780      -25     
- Misses      38500    38524      +24     
- Partials     5222     5223       +1     

Impacted Files	Coverage Δ
extern/sector-storage/piece_provider.go	55.31% <100.00%> (ø)
chain/actors/builtin/miner/diff.go	48.52% <0.00%> (-10.30%)	⬇️
chain/events/observer.go	71.64% <0.00%> (-6.72%)	⬇️
storage/wdpost_sched.go	77.45% <0.00%> (-3.93%)	⬇️
miner/miner.go	55.08% <0.00%> (-2.96%)	⬇️
chain/events/events_height.go	68.90% <0.00%> (-2.53%)	⬇️
extern/sector-storage/sched.go	84.77% <0.00%> (-0.83%)	⬇️
chain/store/store.go	63.00% <0.00%> (-0.67%)	⬇️
extern/sector-storage/sched_worker.go	78.48% <0.00%> (-0.59%)	⬇️
itests/kit/blockminer.go	69.61% <0.00%> (-0.56%)	⬇️
... and 7 more