TUN-5895 run brew bump-formula-pr on release

.teamcity/update-homebrew-core.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -euo pipefail
+
+if ! VERSION="$(git describe --tags --exact-match 2>/dev/null)" ; then
+    echo "Skipping public release for an untagged commit."
+    echo "##teamcity[buildStatus status='SUCCESS' text='Skipped due to lack of tag']"
+    exit 0
+fi
+
+if [[ "${HOMEBREW_GITHUB_API_TOKEN:-}" == "" ]] ; then
+    echo "Missing GITHUB_API_TOKEN"
+    exit 1
+fi
+
+# "install" Homebrew
+git clone https://github.com/Homebrew/brew tmp/homebrew
+eval "$(tmp/homebrew/bin/brew shellenv)"
+brew update --force --quiet
+chmod -R go-w "$(brew --prefix)/share/zsh"
+
+# bump formula pr
+brew bump-formula-pr cloudflared