Wrong employees parameter definition in oa3 yaml

[brannow]

the requests for
/company/attendances:
/company/time-offs:
define the employees parameter as query (comma list)

the server denied such format with the message "the employees must be an array"

after some try and error, the personio server accepted a body json object with an integer array (or an empty array as well)
the response data matched also the expected result, so I assume the documentation is not up to date.

Here the changes:

- name: employees
  in: query
  required: false
  description: A list of Personio employee ID's to filter the results. The result filters including only absences of provided employees
  explode: true
  schema:
    type: array
    items:
      type: integer

to

- name: employees
  in: body
  required: false
  description: A list of Personio employee ID's to filter the results. The result filters including only absences of provided employees
  explode: true
  schema:
    type: object
    properties:
      employees:
        type: array
        items:
          type: integer