lib/micropython-lib: Update submodule to latest.

This brings in:
- lora: fix SNR value in SX126x received packets
- utop: add initial implementation for ESP32
- utop: print MicroPython memory info
- utop: print IDF heap details
- urllib.urequest: add support for headers to urequest.urlopen
- aiorepl: use blocking reads for raw REPL and raw paste
- errno: add ENOTCONN constant
- logging: allow logging.exception helper to handle tracebacks
- aioble-l2cap: raise correct error if l2cap disconnects during send
- abc: add ABC base class
- aiohttp: fix partial reads by using readexactly
- aiorepl: handle stream shutdown

Signed-off-by: Damien George <[email protected]>

Author: dpgeorge