fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-SETUPTOOLS-3180412

Author: snyk-bot

requirements.txt

@@ -1,3 +1,4 @@
 junitparser==3.1.2
 tcms-api>=12.8.1
 requests>=2.32.0 # not directly required, pinned by Snyk to avoid a vulnerability
+setuptools>=65.5.1 # not directly required, pinned by Snyk to avoid a vulnerability