What's Changed
* Remove Python 2.7 leftovers by DimitriPapadopoulos in https://github.com/holgern/pyedflib/pull/270
* Start applying ruff rules by DimitriPapadopoulos in https://github.com/holgern/pyedflib/pull/269
* Fix reading of UTF8 annotations by skjerns in https://github.com/holgern/pyedflib/pull/276
* Fix utf-8 character annotation writing by skjerns in https://github.com/holgern/pyedflib/pull/277
**Full Changelog**: https://github.com/holgern/pyedflib/compare/v0.1.39...v0.1.40