Wishlist validation added for gropued product

[Mohamed-Asar]

Description (*)

Validation added for grouped while add child products to wishlist

Fixed Issues (if relevant)

1. Fixes Grouped Product Wishlist Validations are not working #39496

Manual testing scenarios (*)

1.Open grouped product PDP, Fill invalid inputs
2. Click add to wishlist

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• README.md files for modified modules are updated and included in the pull request if any README.md predefined sections require an update
• All automated tests passed successfully (all builds are green)

[m2-assistant]

Hi @Mohamed-Asar. Thank you for your contribution!
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