[86by0byqr][select] fixed multiselect a11y

[msereniti]

Motivation and Context

Multiselect wasn't annotated properly if it used with options prop because default options rendered was adding aria-selected without taking into account that value may be an array of selected options.

Also I've fixed a11y linting – select.option.checkbox should not have any roles because it's just a visual representation of multiselect option.

How has this been tested?

Manually and with unit test.

Types of changes

• [x] Bug fix (non-breaking change which fixes an issue).
• [ ] New feature (non-breaking change which adds functionality).
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected).
• [ ] Nice improve.

Checklist:

• [x] My code follows the code style of this project.
• [x] I have updated the documentation accordingly or it's not required.
• [x] Unit tests are not broken.
• [x] I have added changelog note to corresponding CHANGELOG.md file with planned publish date.
• [x] I have added new unit tests on added of fixed functionality.