https://www.gov.uk/government/uploads/s ... ds-v13.pdf
page 22
Holidays taken on the conclusion of employment
Where an applicant’s continuous residence period includes time spent as a Tier 2 migrant or a work permit holder, annual leave can include a short holiday taken on conclusion of employment, if the applicant made an immigration application to work for a new employer
within 60 days of the conclusion of the previous employment
However please note that it is not advisable to start your employment before getting your BRP card.