fix(vendor): update MicroPython to resolve GC false-positive

[romanz]

See trezor/micropython#18.

[github-actions]

core UI changes	device test	click test	persistence test
T2T1 Model T	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
T3B1 Safe 3	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
T3T1 Safe 5	test(screens) main(screens)	test(screens) main(screens)	test(screens) main(screens)
All	main(screens)

[romanz]

This false-positive (reinterpreting uninitialized memory as a heap pointer) caused MicroPython's GC to keep alive an old session module, which resulted in not calling Homescreen layout d-tor, which was holding the ImageBuffer lock.

The above resulted in a loop of MemoryError exceptions:

134167014879 trezor.workflow DEBUG setting a new default: <generator>
134167014905 trezor.loop DEBUG spawn new task: <generator object 'homescreen' at 0x7f5f5127c7a0>
134167014928 trezor.workflow DEBUG start default: <generator object 'homescreen' at 0x7f5f5127c7a0>
134167016381 trezor.loop ERROR exception:
Traceback (most recent call last):
  File "trezor/loop.py", line 162, in _step
  File "apps/homescreen/__init__.py", line 53, in homescreen
  File "trezor/ui/layouts/homescreen.py", line 92, in __init__
  File "trezor/ui/layouts/homescreen.py", line 38, in _retry_with_gc
MemoryError: 
134167016452 trezor.workflow DEBUG default closed: <generator object 'homescreen' at 0x7f5f5127c7a0>
134167016478 trezor.loop DEBUG spawn new task: <generator object 'homescreen' at 0x7f5f5125b680>
134167016501 trezor.workflow DEBUG start default: <generator object 'homescreen' at 0x7f5f5125b680>
134167017912 trezor.loop ERROR exception:
Traceback (most recent call last):
  File "trezor/loop.py", line 162, in _step
  File "apps/homescreen/__init__.py", line 53, in homescreen
  File "trezor/ui/layouts/homescreen.py", line 92, in __init__
  File "trezor/ui/layouts/homescreen.py", line 38, in _retry_with_gc
MemoryError: 
134167017976 trezor.workflow DEBUG default closed: <generator object 'homescreen' at 0x7f5f5125b680>
134167018007 trezor.loop DEBUG spawn new task: <generator object 'homescreen' at 0x7f5f5125eda0>
134167018032 trezor.workflow DEBUG start default: <generator object 'homescreen' at 0x7f5f5125eda0>
134167019375 trezor.loop ERROR exception:
Traceback (most recent call last):
  File "trezor/loop.py", line 162, in _step
  File "apps/homescreen/__init__.py", line 53, in homescreen
  File "trezor/ui/layouts/homescreen.py", line 92, in __init__
  File "trezor/ui/layouts/homescreen.py", line 38, in _retry_with_gc
MemoryError: 
...

The following patches were used to debug this issue:

• 2d7b4b8
• trezor/micropython@f58f9b7