Deploy run-php-script wrapper on devserver
The run-php-script wrapper command searches at several locations
for an executable and run the first one found.
That method allows to prioritize a version local to the project,
installed by Composer, and fallback to the system one if needed.
This concerns tools like phan, psalm, rector.
As phpcs/phpcbf are handled by 69e38320, it's out of scope of the
current wrapper change.
Test Plan: rector
Reviewers: DorianWinty, dereckson
Reviewed By: DorianWinty, dereckson
Differential Revision: https://devcentral.nasqueron.org/D2676