fix(deps): use --no-upgrade option on brew bundle commands

This ensures a more restrictive install of homebrew dependencies.

Brewfile.ci

@@ -1,3 +1 @@
 # frozen_string_literal: true
-
-brew 'python'

CHANGELOG.md

@@ -2,8 +2,6 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
-### [0.6.41](https://github.com/jimeh/build-emacs-for-macos/compare/v0.6.40...v0.6.41) (2023-01-16)
-
 ### [0.6.40](https://github.com/jimeh/build-emacs-for-macos/compare/v0.6.39...v0.6.40) (2023-01-08)
 
 ### [0.6.39](https://github.com/jimeh/build-emacs-for-macos/compare/v0.6.38...v0.6.39) (2022-12-04)

Makefile

@@ -49,10 +49,10 @@ bootstrap: bootstrap-brew
 bootstrap-ci: bootstrap-brew bootstrap-brew-ci bootstrap-pip
 
 bootstrap-brew:
-	brew bundle
+	brew bundle --no-upgrade
 
 bootstrap-brew-ci:
-	brew bundle --file Brewfile.ci
+	brew bundle --file Brewfile.ci --no-upgrade
 
 bootstrap-pip:
 	$(PIP) install -r requirements-ci.txt