Add PHP update or downgrade script

[chendelin1982]

PRD

• print current version, and list the object version
• user select the new version
• upgrading or downgrading
• print result

[zengxc-1996]

example: php 7.2 -> 7.4

1. enable php74 repo
2. remove php72 and php-*
3. install php74 and php-*
4. rename configure file
5. restart php and nginx service

[qiaofeng1227]

1. role_php support reinstall (uninstall->install)
2. add interaction at tests/test.yml