chore(release): 6.20.0 [skip ci]

# [6.20.0](v6.19.0...v6.20.0) (2024-01-19)

### Bug Fixes

* fix merge proto and add change log ([#1278](#1278)) ([8e7be93](8e7be93))

### Features

* add strict object name validation ([#1265](#1265)) ([830e36e](830e36e))
* support signature v4 ([#1277](#1277)) ([8bbe9b1](8bbe9b1))

Author: semantic-release-bot