Accessibility: Problems with ARIA child roles "Certain ARIA roles must contain particular children"

[tdSPAccessibility]

Version used
4.13.1

Describe the bug
Accessibility:
A few PnP Modern Search issues were identified during the accessibility audit.
Axe DevTools informs of problems with ARIA child roles in the PnP Modern Search Filter web part: "Certain ARIA roles must contain particular children". Ensure elements with an ARIA role that require child roles contain them.
Axe DevTools: axe Browser Extensions for Accessibility Testing | Deque
WCAG 2.1, 1.3.1

To Reproduce
Detailed steps to reproduce the behavior:
Configure search page you like with search box, results and filters web parts. There should be at least one filter defined.
Execute a search with keyword that returns filterable results.
Execute the axe DevTools accessibility tool on the page.
The axe DevTools tool should find multiple "Certain ARIA roles must contain particular children" -errors in the filter web part and provide suggestions for fixing them.

Expected behavior
The axe DevTools should not find any technical errors in the web part.

Desktop (please complete the following information):
Browser: Chrome, Version 129.0.6668.90 (Official Build) (64-bit)