build(deps): bump pypdf from 6.15.0 to 6.16.1 (#3068)

Bumps [pypdf](https://github.com/py-pdf/pypdf) from 6.15.0 to 6.16.1.
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](https://github.com/py-pdf/pypdf/compare/6.15.0...6.16.1)

---
updated-dependencies:
- dependency-name: pypdf
  dependency-version: 6.16.1
  dependency-type: indirect
...

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

poetry.lock

@@ -2611,16 +2611,15 @@ testing = ["aiohttp (>=3.8,<3.11)", "freezegun (>=1.1.0)", "pyhanko-certvalidato
 
 [[package]]
 name = "pypdf"
-version = "6.15.0"
+version = "6.16.1"
 description = "A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files"
 optional = false
 python-versions = ">=3.9"
 groups = ["main", "dev"]
 files = [
-    {file = "pypdf-6.15.0-py3-none-any.whl", hash = "sha256:14e001d6504822cb1ca9c7ed9a69bccb320f59b320730f55af804361abe4d5ee"},
-    {file = "pypdf-6.15.0.tar.gz", hash = "sha256:d39c4d955a76409284a905e2d65b40076d77ab76129e0faaeeb6612403ecfc79"},
+    {file = "pypdf-6.16.1-py3-none-any.whl", hash = "sha256:63fec31c4092ae50b6729beedcb469055b60d20c834bde1c402df241f371f644"},
+    {file = "pypdf-6.16.1.tar.gz", hash = "sha256:c4d1b43ddae921387321cf63936cd16a7743b91d2da92f165c149a195c972ba9"},
 ]
-markers = {main = "extra == \"pdf\""}
 
 [package.dependencies]
 typing_extensions = {version = ">=4.0", markers = "python_version < \"3.11\""}