chore(deps): bump pypdf in /databases/weaviate/docker/embed-docs (#1939)

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 6.7.5 to 6.8.0.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@6.7.5...6.8.0)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.8.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

databases/weaviate/docker/embed-docs/requirements.txt

@@ -5,7 +5,7 @@ langchain-community==0.2.19
 langchain-google-vertexai==1.0.10
 langchain-weaviate==0.0.2
 weaviate-client==4.7.1
-pypdf==6.7.5
+pypdf==6.8.0
 click==8.1.7
 Flask==3.1.3
 itsdangerous==2.2.0