BB2-3258 Web server Python Upgrade to 3.11.9

[noor1027]

JIRA Ticket: BB2-3258

What Does This PR Do?

This PR upgrades the Python version from the previous version to Python 3.11.

What Should Reviewers Watch For?

1. Ensure that all dependencies in requirements.txt or other package management files are compatible with Python 3.11.
2. Ensure that any changes related to type annotations or syntax updates introduced in Python 3.11 are correctly implemented.
3. Look for any missing or unclear instructions on setting up Python 3.11 locally or in deployment environments.

If you're reviewing this PR, please check for these things in particular:

Validation

What Security Implications Does This PR Have?

Please indicate if this PR does any of the following:

• Adds any new software dependencies

• Modifies any security controls

• Adds new transmission or storage of data

• Any other changes that could possibly affect security?

• [ ] Yes, one or more of the above security implications apply. This PR must not be merged without the ISSO or team security engineer's approval.

Any Migrations?

• [ ] Yes, there are migrations
  • [ ] The migrations should be run PRIOR to the code being deployed
  • [ ] The migrations should be run AFTER the code is deployed
  • [ ] There is a more complicated migration plan (downtime, etc)
• [x] No migrations

[JFU-NAVA-PBC]

nice to see mock sls Dockerfile updated to 3.11