Draft: Fix bug checking EE features project feature availability

What does this MR do?

Method Project.feature_available? checks for both project features and license features. Nevertheless, when it checks the project features, it only checks ProjectFeature::FEATURES which are FOSS features, but it doesn't check EE ones.

In this MR we fix that by also checking all defined FEATURES.

Does this MR meet the acceptance criteria?

Conformity

• I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

Related to #208412 (closed)