update dependencies to use gopsutil v4

[creativeprojects]

update dependencies to use gopsutil from v3 to v4

gopsutil v4 version no longer needs go-m1cpu package

Fixes #628

[Copilot]

Pull request overview

Updates the project’s process-inspection dependency to gopsutil v4 to eliminate the go-m1cpu transitive dependency implicated in macOS (M5) crashes (issue #628), and refreshes related module versions.

Changes:

• Migrate gopsutil imports from github.com/shirou/gopsutil/v3/... to .../v4/... in the lock implementation and tests.
• Update go.mod/go.sum to require github.com/shirou/gopsutil/v4 and drop github.com/shoenig/go-m1cpu (plus related dependency updates).

Reviewed changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
lock/lock.go	Switches process PID existence checks to gopsutil v4 import path.
lock/lock_test.go	Updates tests to use gopsutil v4 process APIs.
go.mod	Bumps gopsutil to v4, removes go-m1cpu indirect dep, and updates related module versions.
go.sum	Reflects the updated dependency graph (adds v4-related sums; removes v3/go-m1cpu sums).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.55%. Comparing base (9653541) to head (49102a5).
⚠️ Report is 12 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #629      +/-   ##
==========================================
- Coverage   80.41%   79.55%   -0.86%     
==========================================
  Files         150      170      +20     
  Lines       11796    12300     +504     
==========================================
+ Hits         9485     9785     +300     
- Misses       1827     2020     +193     
- Partials      484      495      +11     

Flag	Coverage Δ
unittests	77.85% <ø> (-0.78%)	⬇️

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