fix: requirements.txt to reduce vulnerabilities
fix: requirements.txt to reduce vulnerabilities


The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-FLASK-42185
- https://snyk.io/vuln/SNYK-PYTHON-FLASK-451637
- https://snyk.io/vuln/SNYK-PYTHON-FLASKADMIN-72276
- https://snyk.io/vuln/SNYK-PYTHON-FLASKADMIN-72414
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-1012994
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-174126
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-455616
- https://snyk.io/vuln/SNYK-PYTHON-SQLALCHEMY-173678
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-40482
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-42069
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-458931
- https://snyk.io/vuln/SNYK-PYTHON-WERKZEUG-564338
perna/podigger,perna/podigger,perna/podigger