style(profiling): fix some easy clippy lints

[realFlowControl]

Description

This PR fixes some easy clippy complaints that showed up when running cargo +stable clippy

Reviewer checklist

• Test coverage seems ok.
• Appropriate labels assigned.

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-04-18 17:32:41

Comparing candidate commit a99494a in PR branch florian/clippy with baseline commit 8180fdb in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 26 metrics, 10 unstable metrics.

[codecov-commenter]

Codecov Report

Merging #2633 (a99494a) into master (8180fdb) will increase coverage by 0.67%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2633      +/-   ##
============================================
+ Coverage     78.67%   79.35%   +0.67%     
  Complexity     2198     2198              
============================================
  Files           199      199              
  Lines         21955    21935      -20     
============================================
+ Hits          17273    17406     +133     
+ Misses         4682     4529     -153     

Flag	Coverage Δ
tracer-extension	78.48% <ø> (-0.04%)	⬇️
tracer-php	80.57% <ø> (+1.68%)	⬆️

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see 10 files with indirect coverage changes

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