Fixes based on Freshteam OpenAPI spec update

[kaustavdm]

Spec update

• [x] Add updated Freshteam OpenAPI spec as a resolved JSON file
• [x] Generate code from updated Freshteam OpenAPI spec

Applicants

• [x] Applicant.archive() now takes an Applicant instead of ApplicantArchive. Remove the unused model.
• [x] Applicant.list() now has pagination support
• [x] Pagination tests for Applicant.list()
• [x] Model ApplicantListQuery has pagination fields sort, sort_type, and page.
• [x] Model ApplicantListQuery has new field requisition_id
• [x] Model ApplicantListQuery has new field created_at
• [x] Rename model: InlineObject4 -> Applicant1. Retain alias ApplicantSubStage

Employees

• [x] Rename model: InlineObject2 -> EmployeeFields. Retain alias EmployeeFieldCreate
• [x] Fix typo in internal method: fieldsApi.createEmployeeField()
• [x] Pagination tests for Employees.list()

Job Postings

• [x] JobPostings.list() now has pagination support
• [x] Model JobPostingsListQuery has pagination fields sort, sort_type, and page.
• [x] Pagination tests for JobPostings.list()

Time-Offs

• [x] TimeOffs.approve() now takes a LeaveRequest instead of LeaveRequestApprove. Remove the unused model.
• [x] Rename model: InlineObject -> LeaveRequest1. Retain alias LeaveRequestReject

[kaustavdm]

Need to configure GH Actions runners for the repo.