Visitor visas are a long process and she can’t enter Canadian under current travel restrictions as she needs written authorization to travel. To do that she needs to have immediate or extended family in Canada. You are not her family. Even if she could enter on a visitor visa, she can’t work for you. The Home Child Care Provider only accepts a select few a year and takes years to process. People have been waiting since 2019 for approval.
How can you apply if outside Canada? Have you looked at the employer form for the job offer? You need a business registration number.