Honor filenames in builtin hook entry and args

[j178]

Honor filenames embedded in entry and args for builtin and fast-path pre-commit hooks.

Configured filenames run serially before runner-selected filenames, preventing duplicate modifying hooks from writing the same file concurrently.

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[codecov]

Codecov Report

❌ Patch coverage is 99.21875% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 93.39%. Comparing base (28bc3f0) to head (d9a6df6).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
crates/prek/src/hooks/pre_commit_hooks/mod.rs	98.55%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2389      +/-   ##
==========================================
+ Coverage   93.37%   93.39%   +0.01%     
==========================================
  Files         129      129              
  Lines       27548    27642      +94     
==========================================
+ Hits        25723    25816      +93     
- Misses       1825     1826       +1     

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