fix final collection checker

[jeffzyliu]

Description

This line is causing premature predictions:

https://github.com/dali-lab/pine-beetle-automation/blob/8aa72f58cbb2eef723fef20b463c34a579e53679/src/controllers/survey123.js#L81

should check for only "yes" on field Is_Final_Collection

Type of Issue

• [ ] New feature
• [ ] Bug fix
• [ ] Documentation update