Upgrade dependencies (Flask)

[LewisCowlesMotive]

Description

I got a dependency error that Jinja2 has a CVE from 2019. While I don't use it, a better fix might be to get the latest Jinja and Flask

Expected behaviour

Feels a bit much, but no CVE's 😄

Actual behaviour

CVE's when running poetry audit

Steps to reproduce

1. setup python
2. install package management solution (I use poetry)
3. Add the poetry audit plugin poetry self add poetry-audit-plugin==0.3.0
4. Run the poetry audit plugin poetry audit

Additional info:

Output of the commands:

• python --version 3.11.9
• pip show connexion | grep "^Version\:" 3.1.0