BB2-4848: Update Debian:13 python3.13 to version 3.13.5-2+deb13u3

[JamesDemeryNava]

JIRA Ticket:
BB2-4848

What Does This PR Do?

Updates Debian:13 python3.13 to version 3.13.5-2+deb13u3 to address a security vulnerability.

What Should Reviewers Watch For?

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

Validation

• Check out the branch
• Build the docker file from root to ensure it build successfully: docker build -t dockerfile-root .
• Exec into running container: docker run -it docker.io/library/dockerfile-root:latest /bin/bash
• Use debian package manager command to look up python3.13 version and ensure it's been updated to 3.13.5-2+deb13u3: dpkg -l | grep python3.13
• Go through testclient auth flow, make sure that works as expected.

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)
• No migrations

[bwang-icf]

Wouldn't we want to change the base image instead of adding it as a package here? Changing line 1 from python3.12 to something else? I know that might make it more involved since we'd have to test this other version and make sure it is backwards compatible.