- Add php8.0

Quote from i-MSCP Github (1.5.3)

Code

1. - Add php8.0
2. - Fix ServicesSSL typo in SERVCES_SSL
3. - Temporary fix for Roundcube out of date dependency no longer available
4. therefore use later (development) version.
5. - Add apache_fcgid installer

Source: https://github.com/i-MSCP/imsc…0a798b7ce03ceef1707e89ded