script update

scripts/brew-update.ps1

@@ -5,9 +5,19 @@
 
 # Dependencies:
 # 1. brew cask install powershell
+# 2. Environment variables for HOMEBREW_GITHUB_USER and HOMEBREW_GITHUB_API_TOKEN set.
 #
 # To run:
 # pwsh ./brew-update.ps1 -version 1.1.0
 
+# Cleaning up
+cd $("$(brew --repository)" + "/Library/Taps/homebrew/homebrew-core/Formula")
+git checkout master
+git reset --hard origin/master
+git push $env:HOMEBREW_GITHUB_USER master
+git branch -D $("bitwarden-cli-" + $version)
+git push $env:HOMEBREW_GITHUB_USER --delete $("bitwarden-cli-" + $version)
+
+# Bump
 $url = 'https://registry.npmjs.org/@bitwarden/cli/-/cli-' + $version + '.tgz';
 brew bump-formula-pr --url="$url" bitwarden-cli