Fixes for Python 3.13 compatibility

[exploide]

Prior to this PR, pyrdp is not compatible with Python 3.13.

• changed deprecated import to typing.BinaryIO (which is backwards compatible even with Python 3.7)
• fixed invalid escape sequence warnings by using raw-strings

fixes #486

@Res260 could you take a look?

[Res260]

Hey, could you please modify

• .github/workflows/ci.yml line 39 and 109 to use python 3.13 as well as 3.12
• .github/workflows/wheels.yml to use upload-artifacts@v4 instead of @V3 (this is unrelated to your PR, but makes two CI checks fail)

[exploide]

Thank you very much for taking care of this PR @Res260 !

.github/workflows/ci.yml line 39 and 109 to use python 3.13 as well as 3.12

Done, though I don't know why testing against 3.12 should be kept. But I did the change anyway.

.github/workflows/wheels.yml to use upload-artifacts@v4 instead of @V3 (this is unrelated to your PR, but makes two CI checks fail)

Done, but I'm not sure if it will immediately succeed since the workflow does not run automatically. According to the migration guide changes might be required. Not sure if they are necessary here because the artifact is not named explicitly.

[exploide]

Indeed, it was necessary to update the upload-artifacts@v4 usage as well, now it seems to work.

Besides, it was necessary to update the dependency on av, since older versions did no longer build on recent systems. See also #485.

Almost everything seems to work now. I'm not sure why the macOS build isn't running.