Add @typing.override.

[ziesemer]

• Provides compatibility as introduced with Python 3.12 / PEP 698.
  • https://peps.python.org/pep-0698/

Notes:

1. I updated typing_extensions.py to be an exact match of the updated typing.py - as the readme indicates:

As MicroPython has no native typing implementation, the typing_extensions.py module provides identical functionality to the typing.py module.

2. I'm not sure how the versioning is supposed to work on these, but I updated both to 1.27.0 to match the latest release.
3. Looks like the prior .mpy files did not even have the version included - but now they do. Not sure what is expected or most appropriate here.

Not sure there are other reasons why this addition should not be included. If accepted, the following should then probably also be looked at for inclusion:

• typing: Add typing module micropython/micropython-lib#584
• python-stdlib: Add typing modules that can be frozen or mip installable. micropython/micropython-lib#1051

[Josverl]

Thanks for the PR.
The changes make sense to me , but not sure what happened to the formatting.
Please use Ruff or Black , both should pick up formatting from the project root.

• Version - I tend to keep aligned to the MicroPython versions where possible. but for typing that is a recent addition, so perhaps that is just an oversight by me.
• not sure why the version was not in the .mpy , it should not optimized out with mpy-cross -O3 either.