fix: update pdfminer.six pin to >=20231228 for unstructured 0.18.32 compatibility

Co-Authored-By: Ryan Waskewich <ryan.waskewich@airbyte.io>

Author: devin-ai-integration[bot]

pyproject.toml

@@ -69,7 +69,7 @@ langchain_text_splitters = { version = "^1.0.0", optional = true }
 markdown = { version = "*", optional = true }  # TODO: Remove if unused
 openai = { version = "0.27.9", extras = ["embeddings"], optional = true }  # Used indirectly by langchain library
 pdf2image = { version = "1.16.3", optional = true }
-"pdfminer.six" = { version = "20221105", optional = true }  # Used indirectly by unstructured library
+"pdfminer.six" = { version = ">=20231228", optional = true }  # Used indirectly by unstructured library
 pyarrow = { version = "^19.0.0", optional = true }
 pytesseract = { version = "0.3.10", optional = true }  # Used indirectly by unstructured library
 python-calamine = { version = "0.2.3", optional = true }  # TODO: Remove if unused