Add updated PHPStan in project as composer dependency

[Quetzacoalt91]

Questions	Answers
Description?	The version of PHPStan is quite old (https://packagist.org/packages/phpstan/phpstan#0.12.100). This PR updates it, merge all the different workflow to an existing bash file then obviously fixes all the new errors reported by PHPStan.
Type?	improvement
BC breaks?	Nope
Deprecations?	Nope
Fixed ticket?	/
Sponsor company	@PrestaShopCorp
How to test?	Non regression tests should be run. Twig has been removed in this PR, so display of the configuration should be checked on different versions of PS (i.e 1.7.3, 1.7.6, 1.7.8, 8.0, 9.0)

[AureRita]

Hi @Quetzacoalt91

I tested your module from 1.7.1.0 to 1.7.3.0 as you can see :

recording.219.webm

and i have this error :

But this one is not related to your PR.

Except that, That what I have :

recording.220.webm

I tested it from :
1.7.3.0 to 1.7.6.0
1.7.6.0 to 1.7.8.9
1.7.8.9 to 8.0.5
8.0.0 to 9.0.0

on all of them I do a rollback except for 8.0.0 to 9.0.0.
I tested the autoupgrade module on 9.0.0 on it works

Because the PR seems to works correctly, I think it's a QA ✔️

Thank you !