fix: test_requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-SETUPTOOLS-7448482

test_requirements.txt

@@ -5,4 +5,4 @@ pytest-django==4.5.2
 flake8==4.0.1
 ipdb==0.13.9
 ipython==8.10.0
-setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability
+setuptools>=70.0.0 # not directly required, pinned by Snyk to avoid a vulnerability