Build(deps): Bump the uv group across 3 directories with 6 updates (#304)

---
updated-dependencies:
- dependency-name: aiohttp
  dependency-version: 3.14.1
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: cryptography
  dependency-version: 48.0.1
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: langchain
  dependency-version: 1.3.9
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: pypdf
  dependency-version: 6.13.0
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: starlette
  dependency-version: 1.3.1
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: python-multipart
  dependency-version: 0.0.31
  dependency-type: indirect
  dependency-group: uv
- dependency-name: aiohttp
  dependency-version: 3.14.1
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: cryptography
  dependency-version: 48.0.1
  dependency-type: indirect
  dependency-group: uv
- dependency-name: starlette
  dependency-version: 1.3.1
  dependency-type: direct:production
  dependency-group: uv
- dependency-name: python-multipart
  dependency-version: 0.0.31
  dependency-type: indirect
  dependency-group: uv
...

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backend/pyproject.toml

@@ -5,17 +5,17 @@ description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
-    "aiohttp>=3.14.0",
+    "aiohttp>=3.14.1",
     "asyncpg>=0.30.0",
     "pyarrow>=23.0.1",
-    "cryptography>=46.0.5",
+    "cryptography>=48.0.1",
     "faiss-cpu==1.12.0",
     "fastapi>=0.117.0",
     "fastmcp>=2.12.2",
     "google-cloud-storage>=2.19.0",
     "httpx>=0.28.1",
     "huggingface-hub>=1.3.0",
-    "langchain>=1.2.12",
+    "langchain>=1.3.9",
     "langchain-classic>=1.0.7",
     "langchain-community>=0.4.1",
     "langchain-google-genai>=4.2.1",
@@ -36,7 +36,7 @@ dependencies = [
     "psycopg2-binary>=2.9.11",
     "pydantic>=2.11.7",
     "pygments>=2.20.0",
-    "pypdf==6.12.0",
+    "pypdf==6.13.0",
     "rank-bm25==0.2.2",
     "rich>=13.7.0",
     "sentence-transformers>=5.1.0",
@@ -48,7 +48,7 @@ dependencies = [
     "sphinx-external-toc==1.0.1",
     "sphinxcontrib-mermaid==1.0.0",
     "sqlalchemy>=2.0.43",
-    "starlette>=1.0.1",
+    "starlette>=1.3.1",
     "tenacity>=9.0.0",
     "unstructured==0.18.18",
 ]