Merge pull request #49 from tekktrik/fix/pinned-typing

Pin circuitpython_typing to min 1.3.1 but not 2.0.0

Author: tekktrik

requirements.txt

@@ -5,4 +5,4 @@
 Adafruit-Blinka
 adafruit-circuitpython-busdevice
 typing-extensions~=4.0
-adafruit-circuitpython-typing~=1.3
+adafruit-circuitpython-typing>=1.3.1,==1.*