Fix homebrew error
Without changing .gitlab-ci.yml, a new homebrew error appears: /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/standalone/sorbet.rb:4:in require': cannot load such file -- sorbet-runtime (LoadError)`.
Without changing .gitlab-ci.yml, a new homebrew error appears: /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/standalone/sorbet.rb:4:in require': cannot load such file -- sorbet-runtime (LoadError)`.