Bump pillow from 9.3.0 to 9.4.0 (#408)

Bumps [pillow](https://github.com/python-pillow/Pillow) from 9.3.0 to 9.4.0.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
- [Commits](python-pillow/Pillow@9.3.0...9.4.0)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

requirements.txt

@@ -31,7 +31,7 @@ odfpy==1.4.1
 cchardet==2.1.7
 lxml==4.9.2
 olefile==0.46
-Pillow==9.3.0
+Pillow==9.4.0
 vobject==0.9.6.1
 msglite==0.30.0
 icalendar==5.0.4