MicroPython documentation is not available for all Patch versions, causing broken links

[Josverl]

This needs a update in stubber to ignore the patch level if there is not doc page for that specific version.

Sample broken link:

• MicroPython module: https://docs.micropython.org/en/v1.22.1/library/neopixel.html

should be smudged over to :

• MicroPython module: https://docs.micropython.org/en/v1.22.0/library/neopixel.html

Note that detection of broken links should be simple as they result in a HTTP/1.1 404 Not Found