fix(deps): update dependency beautifulsoup4 to ~=4.13.3

Author: renovate[bot]

backend/pyproject.toml

@@ -14,7 +14,7 @@ dependencies = [
     "django-ninja ~= 1.3.0",
     "httpx ~=0.28.0",
     "cryptography ~=44.0",
-    "beautifulsoup4 ~= 4.12.3",
+    "beautifulsoup4 ~=4.13.3",
     "django-cors-headers ~=4.7.0",
     "redis ~= 5.2.0",
     "pydantic ~=2.10.1",