* Adding release notes for 3.1.0



* add release notes pr



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(cherry picked from commit ce00ce9d396f773745a09947e9a790b550a85dd3)

Signed-off-by: Shenoy Pratik <sgguruda@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>