build(deps): update unstructured[all-docs] requirement

Updates the requirements on [unstructured[all-docs]](https://github.com/Unstructured-IO/unstructured) to permit the latest version.
- [Release notes](https://github.com/Unstructured-IO/unstructured/releases)
- [Changelog](https://github.com/Unstructured-IO/unstructured/blob/main/CHANGELOG.md)
- [Commits](Unstructured-IO/unstructured@0.18.31...0.22.18)

---
updated-dependencies:
- dependency-name: unstructured[all-docs]
  dependency-version: 0.22.18
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -4,7 +4,7 @@ dynamic = ["version"]
 description = "Unstructured API for document processing"
 requires-python = ">=3.12"
 dependencies = [
-    "unstructured[all-docs] >=0.18.31, <1.0.0",
+    "unstructured[all-docs]>=0.22.18,<1.0.0",
     "fastapi >=0.128.4, <1.0.0",
     "python-multipart >=0.0.18",
     "uvicorn >=0.40.0, <1.0.0",