Bump ocrmypdf from 13.4.2 to 13.4.3

Bumps [ocrmypdf](https://github.com/jbarlow83/ocrmypdf) from 13.4.2 to 13.4.3.
- [Release notes](https://github.com/jbarlow83/ocrmypdf/releases)
- [Changelog](https://github.com/ocrmypdf/OCRmyPDF/blob/master/docs/release_notes.rst)
- [Commits](https://github.com/jbarlow83/ocrmypdf/compare/v13.4.2...v13.4.3)

---
updated-dependencies:
- dependency-name: ocrmypdf
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -57,7 +57,7 @@ langdetect==1.0.9
 lxml==4.8.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 msgpack==1.0.3
 numpy==1.22.3; python_version >= '3.8'
-ocrmypdf==13.4.2
+ocrmypdf==13.4.3
 packaging==21.3; python_version >= '3.6'
 pathvalidate==2.5.0
 pdf2image==1.16.0