fix: make TestTimedCacheBlockstoreSimple pass reliably

[Stebalien]

No description provided.

[codecov]

Codecov Report

Merging #7174 (b3966ab) into master (263a85c) will decrease coverage by 0.12%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #7174      +/-   ##
==========================================
- Coverage   34.85%   34.73%   -0.13%     
==========================================
  Files         684      684              
  Lines       80137    80137              
==========================================
- Hits        27934    27837      -97     
- Misses      46518    46632     +114     
+ Partials     5685     5668      -17     

Impacted Files	Coverage Δ
blockstore/timed.go	67.00% <100.00%> (ø)
chain/actors/builtin/paych/v4.go	0.00% <0.00%> (-40.00%)	⬇️
chain/actors/builtin/paych/message4.go	0.00% <0.00%> (-28.89%)	⬇️
storage/addresses.go	55.95% <0.00%> (-8.34%)	⬇️
storage/wdpost_sched.go	77.22% <0.00%> (-7.93%)	⬇️
chain/actors/builtin/market/v4.go	36.52% <0.00%> (-7.83%)	⬇️
chain/actors/builtin/miner/v4.go	39.00% <0.00%> (-7.13%)	⬇️
chain/actors/builtin/paych/paych.go	16.88% <0.00%> (-5.20%)	⬇️
chain/stmgr/call.go	62.00% <0.00%> (-4.00%)	⬇️
blockstore/buffered.go	40.00% <0.00%> (-2.23%)	⬇️
... and 13 more

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[Stebalien]

codecov/project/miner — 68.33% (-0.69%) compared to 263a85c

🙄

[Stebalien]

CodeQL can stuff it.