Update pypdf[crypto] requirement from ~=6.1.1 to ~=6.4.0 (#893)

Updates the requirements on [pypdf[crypto]](https://github.com/py-pdf/pypdf) to permit the latest version.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@6.1.1...6.4.0)

---
updated-dependencies:
- dependency-name: pypdf[crypto]
  dependency-version: 6.4.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

pyproject.toml

@@ -22,7 +22,7 @@ dependencies = [
     "cloudpathlib[s3] ~=0.23.0",
     "python-dateutil ~=2.9.0",
     "lxml >=5.0.0,<7",
-    "pypdf[crypto] ~=6.1.1",
+    "pypdf[crypto] ~=6.4.0",
     "PyYAML ~=6.0.2",
     "sentry-sdk ~=2.43.0",
     "requests ~=2.32.3",