Update changelog for r2.1.0 (#11745) (#11746)

* beep boop: Update changelog



* highlights



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Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Signed-off-by: oliver könig <[email protected]>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: ko3n1g