fix: images/benchmarker_dbmsbenchmarker/requirements.txt to reduce vu…

…lnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-REQUESTS-6928867

images/benchmarker_dbmsbenchmarker/requirements.txt

@@ -1,7 +1,7 @@
 paramiko>=2.4.2
 urllib3>=1.24.1
 boto3>=1.9.104
-requests>=2.21.0
+requests>=2.32.0
 scp>=0.13.2
 kubernetes>=9.0.0
 psutil>=5.6.1