Bump urllib3 version to 2.6.3

Author: cbullinger

mflix/server/python-fastapi/requirements.in

@@ -32,7 +32,7 @@ dnspython~=2.8.0        # Required for SRV record lookups by pymongo (e.g., Mong
 httpx~=0.28.0           # Asynchronous HTTP client for requests to external APIs
 email-validator~=2.3.0  # Utility for validating email addresses
 voyageai~=0.3.5         # Vector embeddings API client
-urllib3>=2.6.0          # HTTP library
+urllib3>=2.6.3          # HTTP library
 
 # ==============================================================================
 # 5. CLI & DEVELOPMENT TOOLS

mflix/server/python-fastapi/requirements.txt

@@ -222,7 +222,7 @@ typing-extensions==4.15.0
     #   typing-inspection
 typing-inspection==0.4.2
     # via pydantic
-urllib3==2.6.1
+urllib3==2.6.3
     # via
     #   -r requirements.in
     #   requests