Fix python-multipart vulnerability (DoS and ReDoS)

Co-authored-by: danielnovais-tech <230455320+danielnovais-tech@users.noreply.github.com>

Author: Copilot

requirements.txt

@@ -30,7 +30,7 @@ alembic==1.13.1
 # Authentication & Security
 python-jose[cryptography]==3.4.0
 passlib[bcrypt]==1.7.4
-python-multipart==0.0.6
+python-multipart==0.0.18
 
 # Testing
 pytest==7.4.4