docs: fix typos in changelog

[ayushshukla1807]

Fix minor typos in changelog. Found via codespell.

[meta-cla]

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[github-actions]

Warning

Missing Summary

Please add a "## Summary" section to your PR description. This is a good place to explain the motivation for making this change.

Warning

Missing Test Plan

Please add a "## Test Plan" section to your PR description. A Test Plan lets us know how these changes were tested.

Caution

Missing Changelog

Please add a Changelog to your PR description. See Changelog format