Update circuitpython libraries script to pick up pre-releases

[kattni]

The output is showing the Adafruit CircuitPython BLE library as no release in 107 days:

"https://github.com/adafruit/Adafruit_CircuitPython_BLE (107 days)",

It is currently in pre-release mode, and the pre-releases aren't being picked up by the script.

Is it worth adding pre-releases to this list?