v0.12.4

Bumped! 👩‍👩‍👧

Diff: v0.12.3...v0.12.4

Changes:

• fix: fixed StringTypeMapper for non scalar values [e3c4087] (@rasstislav)
• feat: added support for enum values in request parameter [e0f8101] (@rasstislav)
• feat: added groups to SymfonyValidator [93c4807] (@rasstislav)
• Fix self reference on array of objects loop error [f583c4f] (@datronjzima)