chore(collector): src/collector readability

[ryanrussell]

Signed-off-by: Ryan Russell git@ryanrussell.org

[codecov-commenter]

Codecov Report

Merging #1399 (56c448a) into main (8024ecf) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1399      +/-   ##
==========================================
- Coverage   94.32%   94.31%   -0.02%     
==========================================
  Files         236      236              
  Lines       43577    43577              
==========================================
- Hits        41105    41100       -5     
- Misses       2472     2477       +5     

Impacted Files	Coverage Δ
src/collector/tests.rs	98.18% <ø> (ø)
src/collector/top_collector.rs	97.60% <ø> (ø)
src/collector/top_score_collector.rs	96.85% <ø> (ø)
src/collector/facet_collector.rs	98.00% <100.00%> (ø)
src/fastfield/multivalued/mod.rs	94.02% <0.00%> (-2.99%)	⬇️
src/fastfield/reader.rs	89.07% <0.00%> (-0.85%)	⬇️
src/postings/stacker/expull.rs	98.57% <0.00%> (-0.48%)	⬇️
src/query/boolean_query/block_wand.rs	96.85% <0.00%> (-0.21%)	⬇️

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[fulmicoton]

Thanks! Make sure to run make fmt next time please!