Merge pull request #435 from rstudio/prepare-1.18.0

Updates date for 1.18.0.

Author: tdstein

CHANGELOG.md

@@ -4,7 +4,7 @@ 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).
 
-## [1.18.0] - 2023-06-26
+## [1.18.0] - 2023-06-27
 
 ### Added
 - Deploys for Posit Cloud and shinyapps.io now accept the `--visibility` flag.