Update codecov from 2.0.22 to 2.1.7 (#720)
Update codecov from 2.0.22 to 2.1.7 (#720)

Co-authored-by: Lawrence Liu <95886ae5b53d7548805521b7da153207380cda33@gmail.com>
betterlife/flask-psi,betterlife/flask-psi,betterlife/psi,betterlife/flask-psi,betterlife/flask-psi,betterlife/psi,betterlife/psi