chore(deps): bump pypdf in /src/containers/image-pii-detection

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 3.12.1 to 6.7.1.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@3.12.1...6.7.1)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.7.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

src/containers/image-pii-detection/requirements.txt

@@ -13,7 +13,7 @@ python-dateutil==2.8.2
 certifi==2022.12.7
 idna==3.7
 chardet==4.0.0
-pypdf==3.12.1
+pypdf==6.7.1
 python-magic==0.4.27
 python-docx==0.8.11
 bs4==0.0.1