build(deps): Bump numpy from 1.23.3 to 1.23.4 in /requirements (#38)

Bumps [numpy](https://github.com/numpy/numpy) from 1.23.3 to 1.23.4.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](numpy/numpy@v1.23.3...v1.23.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

requirements/pdf.txt

@@ -46,7 +46,7 @@ matplotlib==3.6.1
     # via pycocotools
 nltk==3.7
     # via unstructured (setup.py)
-numpy==1.23.3
+numpy==1.23.4
     # via
     #   contourpy
     #   layoutparser