Screen reader should announce dropdown label , when focus on dropdown

[dhakadgourav]

Issue: Screen reader users may not know about the dropdowns if the JAWS doesn't announce them to the user

Responsible Service: https://select2.org/appearance

Actual Result:​
JAWS is not announcing the dropdown options

Expected Result:​
JAWS should announce the dropdown options

User Impact:​
Screen reader users may not know about the dropdowns if the JAWS doesn't announce it to the user

[smalos]

This is already tracked here: #3744

[kevin-brown]

I'm going to keep this open since the one linked is a multi-ticket (covers a wide variety of issues through the years) and this one is a bit more focused on the specific issue with labels.