Bump version 3.4.1 -> 3.4.2.
Changes since 3.4.1:
- Remove the deprecated pyfuse3_asyncio module (long-renamed to
pyfuse3.asyncio)
- Fix a test failure in test_examples.py
- Modernize the build process and add more type annotations
Signed-off-by: Alexandru Ardelean <alex@shruggie.ro>