Add support for size validation rule

[manuel-watchenterprise]

min and max are supported already, however, size is not yet. It's a nice to have feature. This would be actually adding both min and max with the argument, I guess.

[
  'options' => ['bail', 'required', 'array', 'min:2', 'max:2'],
  // equivalent
  'options' => ['bail', 'required', 'array', 'size:2'],
]

[romalytvynenko]

@manuel-watchenterprise released in 0.11.25 https://github.com/dedoc/scramble/releases/tag/v0.11.25