Improvements to "valet use" command

- properly detects if the requested version is already installed, and skips re-installing/re-starting/re-configuring
- allows --force to re-configure anyway
- smarter treatment of 'php' when it's aliased to another specific installed version

cli/Valet/Diagnose.php

@@ -20,6 +20,7 @@ class Diagnose
         'brew services list',
         'brew list --formula --versions | grep -E "(php|nginx|dnsmasq|mariadb|mysql|mailhog|openssl)(@\d\..*)?\s"',
         'brew outdated',
+        'brew tap',
         'php -v',
         'which -a php',
         'php --ini',