update changelog

Author: bcwu

CHANGELOG.md

@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
-## [1.17.0] - 2023-XX-XX
+## [1.17.0] - 2023-05-12
 
 ### Added
 - `deploy html` and `deploy manifest` now support deployment to Posit Cloud.