fix(deps): update rust crate which to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
which	dependencies	major	5.0 -> 6.0

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Release Notes

harryfei/which-rs (which)

v6.0.0

Compare Source

• MSRV is now 1.70
• Upgraded all dependencies to latest version

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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (1123252) 11.66% compared to head (7a0b068) 11.66%.
Report is 1 commits behind head on main.

❗ Current head 7a0b068 differs from pull request most recent head cd2a8b2. Consider uploading reports for the commit cd2a8b2 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #173   +/-   ##
=======================================
  Coverage   11.66%   11.66%           
=======================================
  Files          23       23           
  Lines        1037     1037           
=======================================
  Hits          121      121           
  Misses        916      916           

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