Pattern string sampler does not take into account maxLength property

[ostridm]

Description

Pattern string sampler does not take into account the maxLength property and produce an unexpected error

Steps to reproduce

Pass the schema to sample as follows:

sample({
  type: 'string',
  format: 'pattern',
  pattern: '^[A-Z0-9]*$',
  maxLength: 10});

Actual result

Error reported:

Sample string cannot be generated by boundaries: maxLength=10, format=pattern

Expected result

Sample value generated successfully

   RRRRR