Enhance Email and Image Dimensions Validation Tests

[alikhosravidev]

This pull request adds additional test cases to improve the coverage of email validation and image dimensions validation in Laravel.

Changes include:
✅ Enhancements in ValidationEmailRuleTest

Added test cases in testBasic to ensure email validation correctly handles:

• Non-string values such as integers.
• Arrays containing valid email addresses.

✅ Enhancements in ValidationDimensionsRuleTest

• Added testItCorrectlyFormatsWithSpecialValues to validate the correct string format of dimension rules, including negative values.
• Added testDimensionsRuleMaintainsCorrectOrder to ensure the order of width constraints is preserved.
• Added testOverridingValues to verify that repeated width constraints correctly override previous values.
• Added testRatioBetweenOverridesMinAndMaxRatio to confirm that ratioBetween() correctly overrides minRatio() and maxRatio().

These tests strengthen the reliability of Laravel’s validation rules for both email and image dimensions. 🚀