[backport] Exceptions when search product with sku like "42-"

[Nazar65]

Description (*)

Try to search products with end of string like "-" or "-"
The exception error appear Unexpected $end
https://dev.mysql.com/doc/refman/8.0/en/fulltext-boolean.html

Original PR #20727

Fixed Issues (if relevant)

1. Exceptions when search product with sku like "42-" #20716: Exceptions when search product with sku like "42-"
2. Quick search by SKU not working properly #9988 Quick search by SKU not working properly

Manual testing scenarios (*)

1.Enable the MySql as search engine in configuration.
2.Search in the frontend with sku "42-" or "-"
3.No exception appear

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)
• All automated tests passed successfully (all builds on Travis CI are green)

[magento-engcom-team]

Hi @Nazar65. Thank you for your contribution
Here is some useful tips how you can test your changes using Magento test environment.
Add the comment under your pull request to deploy test or vanilla Magento instance:

• @magento-engcom-team give me test instance - deploy test instance based on PR changes
• @magento-engcom-team give me 2.2-develop instance - deploy vanilla Magento instance

For more details, please, review the Magento Contributor Assistant documentation

[magento-engcom-team]

Hi @orlangur, thank you for the review.
ENGCOM-4082 has been created to process this Pull Request

[ghost]

Hi @Nazar65, thank you for your contribution!
Please, complete Contribution Survey, it will take less than a minute.
Your feedback will help us to improve contribution process.