Update libraries based on Dependabot work

[mwobensmith]

Bump pyautogui from 0.9.41 to 0.9.47
Bump funcy from 1.11 to 1.13
Bump gitpython from 2.1.11 to 3.0.2
Bump packaging from 19.0 to 19.1
Bump mss from 4.0.1 to 4.0.3
Bump numpy from 1.16.1 to 1.17.2
Bump pytest from 5.0.1 to 5.1.2
Bump mozrunner from 7.4.0 to 7.5.1
Bump opencv-python from 4.0.0.21 to 4.1.1.26
Bump mozinfo from 1.0.0 to 1.1.0

[mwobensmith]

Two more:

Bump pytesseract from 0.2.6 to 0.3.0
Bump more-itertools from 5.0.0 to 7.2.0