[Snyk] Security upgrade python from 3.11.2-slim-bullseye to 3-slim-bullseye

[snyk-bot]

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• Dockerfile

We recommend upgrading to python:3-slim-bullseye, as this image has only 52 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	400	Out-of-bounds Read SNYK-DEBIAN11-NCURSES-2767191	No Known Exploit
	150	Out-of-bounds Write SNYK-DEBIAN11-NCURSES-5421197	No Known Exploit
	150	Out-of-bounds Write SNYK-DEBIAN11-NCURSES-5421197	No Known Exploit
	150	Out-of-bounds Write SNYK-DEBIAN11-NCURSES-5421197	No Known Exploit
	150	Out-of-bounds Write SNYK-DEBIAN11-NCURSES-5421197	No Known Exploit

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[jonasbn]

This is a duplicate of PR #152 from @dependabot