fix: align dependent element logic with server-side behaviour

[OzanKurt]

What does this achieve?

This change ensures that the last input element with a given name is used when evaluating dependencies in custom validation logic.

This is important because, in HTML form submissions, the last matching input with the same name takes precedence when there are multiple inputs with the same name. A common example is when using a hidden input alongside a checkbox to provide a default value:

<input type="hidden" name="my_checkbox" value="0">
<input type="checkbox" name="my_checkbox" value="1">

This pattern is widely used to ensure a consistent value is submitted whether the checkbox is checked or not. If the checkbox is unchecked, only the hidden input (value="0") is submitted. If it is checked, both are submitted, but the checkbox value (1) takes precedence.

Without this fix, the validation logic incorrectly evaluates the first input (the hidden one), ignoring the actual user interaction with the checkbox. By using the last matching input, we align the validation behavior with how browsers and backends (like Laravel) interpret the submitted data.

[OzanKurt]

@proengsoft

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.10%. Comparing base (eadeb21) to head (5bf9164).
Report is 37 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1062   +/-   ##
=========================================
  Coverage     97.10%   97.10%           
- Complexity      190      191    +1     
=========================================
  Files            18       18           
  Lines           519      519           
=========================================
  Hits            504      504           
  Misses           15       15           

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[jsvalidation-release]

🎉 This PR is included in version 4.10.2 🎉

The release is available on GitHub release

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