release: release-changelog/7.82.0 (#31599)

This PR updates the change log for 7.82.0. (Hotfix - no test plan
generated.)

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Co-authored-by: metamaskbot <metamaskbot@users.noreply.github.com>
Co-authored-by: tommasini <tommasini15@gmail.com>
Co-authored-by: sleepytanya <104780023+sleepytanya@users.noreply.github.com>
Co-authored-by: sleepytanya <sleepytanya@gmail.com>

Author: 4 people