fix: dev_requirements.txt to reduce vulnerabilities

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

Author: snyk-bot

dev_requirements.txt

@@ -2,4 +2,5 @@ termcolor
 pytest
 pytest-asyncio
 sphinx
-sphinxcontrib-apidoc
+sphinxcontrib-apidoc
+setuptools>=78.1.1 # not directly required, pinned by Snyk to avoid a vulnerability