Fix summary in debug collector

[vjik]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues

[what-the-diff]

PR Summary

• Added debug collector for yiisoft/yii-debug
  This PR introduces a new debug collector for better debugging support in the yiisoft/yii-debug package.
• Fixed issues Split debug #597 and Fix summary in debug collector #608
  These issues have been addressed by incorporating the debug collector as mentioned above (@xepozz, @vjik).
• Removed empty array from getSummary() in ValidatorCollector class
  An unnecessary empty array has been removed from the getSummary() method, improving code cleanliness.

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (e7b1afa) 94.28% compared to head (05be758) 94.29%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #608   +/-   ##
=========================================
  Coverage     94.28%   94.29%           
- Complexity      745      746    +1     
=========================================
  Files            88       88           
  Lines          2275     2277    +2     
=========================================
+ Hits           2145     2147    +2     
  Misses          130      130           

Impacted Files	Coverage Δ
src/Debug/ValidatorCollector.php	92.85% <100.00%> (+0.54%)	⬆️

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