fix: tools/zircolite_server/requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-FLASK-5490129
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-6150717
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-6809379

Author: snyk-bot

tools/zircolite_server/requirements.txt

@@ -1,4 +1,4 @@
-flask>=1.1.2
-jinja2>=2.11.3
+flask>=2.2.5
+jinja2>=3.1.4
 werkzeug>=3.0.3 # not directly required, pinned by Snyk to avoid a vulnerability
 zipp>=3.19.1 # not directly required, pinned by Snyk to avoid a vulnerability