- update to 20231228:
* Removed Support for Python 3.6 and 3.7
* Output converter for the hOCR format
* Font name aliases for Arial, Courier New and Times New Roman
* Documentation on why special characters can sometimes not be
extracted
* Storing Bezier path and dashing style of line in LTCurve
* Broken CI/CD pipeline by setting upper version limit for
black, mypy, pip and setuptools
* `flake8` failures
* `ValueError` when bmp images with 1 bit channel are decoded
* `ValueError` when trying to decrypt empty metadata values
* Sphinx errors during building of documentation
* `TypeError` when getting default width of font
* Installing typing-extensions on Python 3.6 and 3.7
* `TypeError` in cmapdb.py when parsing null characters
* Color "convenience operators" now (per spec) also set color
space
* `ValueError` when extracting images, due to breaking changes
in Pillow
* Small typo's and issues in the documentation
* Ignore non-Unicode cmaps in TrueType fonts
* Using non-hardcoded version string and setuptools-git-
versioning to enable installation from source and building on
Python 3.12
* Usage of `if __name__ == "__main__"` where it was only
intended for testing purposes
- drop import-from-non-pythonpath-files.patch (upstream)

- Option to disable boxes flow layout analysis when using pdf2txt