build(deps): bump the pip group across 1 directory with 2 updates

Bumps the pip group with 2 updates in the / directory: [langchain](https://github.com/langchain-ai/langchain) and [pypdf](https://github.com/py-pdf/pypdf).


Updates `langchain` from 1.2.18 to 1.3.10
- [Release notes](https://github.com/langchain-ai/langchain/releases)
- [Commits](langchain-ai/langchain@langchain==1.2.18...langchain==1.3.10)

Updates `pypdf` from 6.12.0 to 6.13.3
- [Release notes](https://github.com/py-pdf/pypdf/releases)
- [Changelog](https://github.com/py-pdf/pypdf/blob/main/CHANGELOG.md)
- [Commits](py-pdf/pypdf@6.12.0...6.13.3)

---
updated-dependencies:
- dependency-name: langchain
  dependency-version: 1.3.10
  dependency-type: direct:production
  dependency-group: pip
- dependency-name: pypdf
  dependency-version: 6.13.3
  dependency-type: direct:production
  dependency-group: pip
...

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

Author: dependabot[bot]

pyproject.toml

@@ -20,10 +20,10 @@ dependencies = [
     "psutil==7.0.0",
     "beautifulsoup4==4.13.4",
     "jieba==0.42.1",
-    "langchain==1.2.18",
+    "langchain==1.3.10",
     "langchain-core==1.3.3",
     "langchain-openai==1.2.1",
-    "langchain-anthropic==1.4.3",
+    "langchain-anthropic==1.4.6",
     "langchain-community==0.4.1",
     "langchain-deepseek==1.0.1",
     "langchain-google-genai==4.2.2",
@@ -52,7 +52,7 @@ dependencies = [
     "python-docx==1.2.0",
     "xlrd==2.0.2",
     "xlwt==1.3.0",
-    "pypdf==6.12.0",
+    "pypdf==6.13.3",
     "pydub==0.25.1",
     "pysilk==0.0.1",
     "gunicorn==23.0.0",