Segysak

Documentation release

Minor bug fixes and updates.

- Fix `pyproject.toml` misconfiguration for pip and setuptools.
- Add depreciation warning to RTD docs for upcoming release.

What's Changed
* Fix notebook example errors by trhallam in https://github.com/trhallam/segysak/pull/114
* Update GitHub actions by trhallam in https://github.com/trhallam/segysak/pull/115
* Fix text header creation by trhallam in https://github.com/trhallam/segysak/pull/116

**Full Changelog**: https://github.com/trhallam/segysak/commits/v0.4rc1

What's Changed
* Fix notebook example errors by trhallam in https://github.com/trhallam/segysak/pull/114
* Update GitHub actions by trhallam in https://github.com/trhallam/segysak/pull/115
* Fix text header creation by trhallam in https://github.com/trhallam/segysak/pull/116

**Full Changelog**: https://github.com/trhallam/segysak/commits/v0.4rc1

Changes:

- Adjusted `get_affine_transform` to solve Affine matrix coefficients explicitly using back substitution.
- Removed support for `subsurface` pending upstream fixes to support Pandas >= 1.4
- Testing bug fixes

Fix segy_writer not updating binary headers for 3d volume.