[Tests] github actions removed homebrew and broke shellcheck

See https://github.com/actions/runner-images/issues/6283

install.sh

@@ -362,6 +362,8 @@ nvm_do_install() {
       exit 1
     fi
   fi
+  # Disable the optional which check, https://www.shellcheck.net/wiki/SC2230
+  # shellcheck disable=SC2230
   if nvm_has xcode-select && [ "$(xcode-select -p >/dev/null 2>/dev/null ; echo $?)" = '2' ] && [ "$(which git)" = '/usr/bin/git' ] && [ "$(which curl)" = '/usr/bin/curl' ]; then
     nvm_echo >&2 'You may be on a Mac, and need to install the Xcode Command Line Developer Tools.'
     # shellcheck disable=SC2016