feat: support file glob pattern as input

[neilime]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 89.70588% with 7 lines in your changes missing coverage. Please review.

Project coverage is 95.80%. Comparing base (a4720e4) to head (a6cdecd).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/CssLint/Cli.php	91.37%	5 Missing ⚠️
src/CssLint/Linter.php	77.77%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #101      +/-   ##
============================================
+ Coverage     95.29%   95.80%   +0.50%     
- Complexity      156      170      +14     
============================================
  Files             4        4              
  Lines           404      429      +25     
============================================
+ Hits            385      411      +26     
+ Misses           19       18       -1     

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