fix: requirements/py313-django51.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-SETUPTOOLS-9964606

Author: snyk-bot

requirements/py313-django51.txt

@@ -239,7 +239,7 @@ pip==24.0 \
     --hash=sha256:ba0d021a166865d2265246961bec0152ff124de910c5cc39f1156ce3fa7c69dc \
     --hash=sha256:ea9bd1a847e8c5774a5777bb398c19e80bcd4e2aa16a4b301b718fe6f593aba2
     # via -r requirements.in
-setuptools==75.3.0 \
+setuptools==78.1.1 \
     --hash=sha256:f2504966861356aa38616760c0f66568e535562374995367b4e69c7143cf6bcd \
     --hash=sha256:fba5dd4d766e97be1b1681d98712680ae8f2f26d7881245f2ce9e40714f1a686
     # via