Bump pypdf from 5.2.0 to 6.6.0 (kevoreilly#2835)

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 5.2.0 to 6.6.0.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@5.2.0...6.6.0)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.6.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

requirements.txt

@@ -2134,9 +2134,9 @@ pyopenssl==25.0.0 ; python_version >= "3.10" and python_version < "4.0" \
 pyparsing==3.2.1 ; python_version >= "3.10" and python_version < "4.0" \
     --hash=sha256:506ff4f4386c4cec0590ec19e6302d3aedb992fdc02c761e90416f158dacf8e1 \
     --hash=sha256:61980854fd66de3a90028d679a954d5f2623e83144b5afe5ee86f43d762e5f0a
-pypdf==5.2.0 ; python_version >= "3.10" and python_version < "4.0" \
-    --hash=sha256:7c38e68420f038f2c4998fd9d6717b6db4f6cef1642e9cf384d519c9cf094663 \
-    --hash=sha256:d107962ec45e65e3bd10c1d9242bdbbedaa38193c9e3a6617bd6d996e5747b19
+pypdf==6.6.0 ; python_version >= "3.10" and python_version < "4.0" \
+    --hash=sha256:4c887ef2ea38d86faded61141995a3c7d068c9d6ae8477be7ae5de8a8e16592f \
+    --hash=sha256:bca9091ef6de36c7b1a81e09327c554b7ce51e88dad68f5890c2b4a4417f1fd7
 pyre2==0.3.10 ; python_version >= "3.10" and python_version < "4.0" \
     --hash=sha256:2771bc0a3a5f3fd1d34fe8ae80debd1fe59a1cdcecdbeb60818bff8deb247e56 \
     --hash=sha256:29312fbb22b7d3cf3e522c43267098162e98ec8b4fc202c9260e22df671b42e1 \