Chore(deps): Bump ocrmypdf in the major-versions group

Bumps the major-versions group with 1 update: [ocrmypdf](https://github.com/ocrmypdf/OCRmyPDF).


Updates `ocrmypdf` from 15.4.4 to 16.4.1
- [Release notes](https://github.com/ocrmypdf/OCRmyPDF/releases)
- [Changelog](https://github.com/ocrmypdf/OCRmyPDF/blob/main/docs/release_notes.rst)
- [Commits](https://github.com/ocrmypdf/OCRmyPDF/compare/v15.4.4...v16.4.1)

---
updated-dependencies:
- dependency-name: ocrmypdf
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: major-versions
...

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

Pipfile

@@ -35,7 +35,7 @@ inotifyrecursive = "~=0.3"
 langdetect = "*"
 mysqlclient = "*"
 nltk = "*"
-ocrmypdf = "~=15.4"
+ocrmypdf = "~=16.4"
 pathvalidate = "*"
 pdf2image = "*"
 psycopg = {version = "*", extras = ["c"]}