Describe the bug
Using axe devtools (a plugin used by the internal A11y team to check for issues) there is an issue with critical impact for the AnalyticalTable. The issue detected by the tool is:
Element has children which are not allowed: [role=separator]

Isolated Example
https://sap.github.io/ui5-webcomponents-react/v1/?path=/story/data-display-analyticaltable--tree-table
Reproduction steps
- Go to the storybook for analytical table
- Open axe devtools in dev console
- Issue is highlighted for the table header

Expected Behaviour
Component to not have a11y issues detectable by the tool
Screenshots or Videos
No response
UI5 Web Components for React Version
v1.24.x
UI5 Web Components Version
v1.24.x
Browser
Edge
Operating System
No response
Additional Context
No response
Relevant log output
No response
Organization
SAP
Declaration