[A11y Switch]: Tooltip doesn't show on keyboard focus

[mari-shakhanava]

Description

Tooltip component doesn't display additional content when Switch/Checkbox
receives keyboard focus, only on mouse hover. This violates WCAG 1.4.13 Content on Hover or Focus (Level AA).

Steps to Reproduce

https://codesandbox.io/p/sandbox/uui-switch-isssue-exapmle-9dwn8y

Actual result

• Hover: Tooltip shows
• Keyboard Focus (Tab): Tooltip doesn't show
  Focus events on nested <input> inside Switch/Checkbox don't bubble to the wrapper element that Tooltip monitors.

Expected result

Both hover AND focus should trigger the tooltip.

Environment

• UUI version: 6.3.3

[JuliaMV]

Released in v6.4.4.