Describe the bug
We've received another A11y issue found by axe tool, the "Select All" checkbox is a table header but it does not have any visible text.
The solution could be either add aria-hidden="true" to the table header cell of checkbox, or add some invisible text to it so screen reader can detect.

Isolated Example
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Reproduction steps
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Expected Behaviour
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Screenshots or Videos
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UI5 Web Components for React Version
1.29.8
UI5 Web Components Version
1.24.8
Browser
Chrome
Operating System
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Additional Context
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Relevant log output
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Organization
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Declaration