fix: docs/requirement.txt to reduce vulnerabilities

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

docs/requirement.txt

@@ -7,5 +7,5 @@ jupyter_contrib_nbextensions
 ipython>=7.16.3 # not directly required, pinned by Snyk to avoid a vulnerability
 pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability
 mistune>=2.0.1 # not directly required, pinned by Snyk to avoid a vulnerability
-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
 wheel>=0.38.0 # not directly required, pinned by Snyk to avoid a vulnerability