Update pypdfium2 requirement from <5.0.0,>=4.11.0 to >=4.11.0,<6.0.0 (#92)

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

Author: dependabot[bot]

pyproject.toml

@@ -33,7 +33,7 @@ dependencies = [
     # Additional typing support is brought by numpy>=1.22.4, but core build sticks to >=1.16.0
     "numpy>=1.16.0,<3.0.0",
     "scipy>=1.4.0,<2.0.0",
-    "pypdfium2>=4.11.0,<5.0.0",
+    "pypdfium2>=4.11.0,<6.0.0",
     "pyclipper>=1.2.0,<2.0.0",
     "rapidfuzz>=3.0.0,<4.0.0",
     "langdetect>=1.0.9,<2.0.0",