Invalid path for compatiblity directory in Compatibility->wpmdbc_disable_theme function.

[yanmorinokamca]

Seen in master branch and in wp-migrate-db-pro 2.2.0:
https://github.com/deliciousbrains/wp-migrate-db/blob/master/class/Common/Compatibility/Compatibility.php#L68

The invalid path for compatiblity directory cause realpath function to return false, and $theme_root become an absolute path from the /temp-theme/ folder. This absolute path is outside of allowed path in my open_basedir configuration and cause a fatal error preventing normal migration.

Note that this error is raised by wordpress class-wp-theme-json-resolver.php that try to open File(/temp-theme/theme.json)

A solution could be to use three back path: /../../../ instead of only one /../.
or to use the variable $GLOBALS['wpmdb_meta']['wp-migrate-db-pro']['abspath']