clarify requirements for pillow

* Keep epub file when selecting another type of output file

* Update Kobo profile list

Update the Kobo models to the current models available from Kobo. I have kept Kobo Forma as this is a popular device amongst manga readers even though it's currently unlisted from Kobo UK's site.

Co-authored-by: darodi <4682830+darodi@users.noreply.github.com>

…ELOG.md

See https://pillow.readthedocs.io/en/stable/deprecations.html#constants

* Bump actions/setup-node from 2 to 3

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 2 to 3.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v2...v3)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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* Bump actions/setup-node from 2 to 3

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: darodi <4682830+darodi@users.noreply.github.com>

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 3 to 4.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v3...v4)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Updates the requirements on [python-slugify](https://github.com/un33k/python-slugify) to permit the latest version.
- [Release notes](https://github.com/un33k/python-slugify/releases)
- [Changelog](https://github.com/un33k/python-slugify/blob/master/CHANGELOG.md)
- [Commits](un33k/python-slugify@1.2.1...v7.0.0)

---
updated-dependencies:
- dependency-name: python-slugify
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

New versions of slugify moved version informations to a standalone
module (__verrsion__.py). Added a check to see if the imported version
is indeed a string (as previously expected). If not, get the
`__version__` variable in the `__version__` module.

Bumps python from 3.8-slim-buster to 3.11-slim-buster.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
...

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