Replace PathBuf/Utf8PathBuf with Path/Utf8Path when ownership not needed

[Integral-Tech]

• Using &Path/&Utf8Path as function parameter type provides better generality over &PathBuf/&Utf8PathBuf, as it can accept both &Path/&Utf8Path and &PathBuf/&Utf8PathBuf.

• When it comes to constructor, Path::new() doesn't introduce overhead of heap allocation, while PathBuf::from() does.

• Public API changes documented in changelogs (optional)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.43%. Comparing base (de56883) to head (17d5186).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4440      +/-   ##
==========================================
+ Coverage   85.40%   85.43%   +0.02%     
==========================================
  Files         283      283              
  Lines       31490    31490              
==========================================
+ Hits        26895    26902       +7     
+ Misses       4595     4588       -7     

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[bnjbvr]

Great, thanks!