[Snyk] Security upgrade python from 3.7 to 3.13.0a1

Created by: tristanrobert

This PR was automatically created by Snyk using the credentials of a real user.

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.openfisca

We recommend upgrading to python:3.13.0a1, as this image has only 171 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
	268	Out-of-bounds Write SNYK-DEBIAN12-GLIBC-5927132	Proof of Concept
	268	Out-of-bounds Write SNYK-DEBIAN12-GLIBC-5927132	Proof of Concept
	268	Out-of-bounds Write SNYK-DEBIAN12-GLIBC-5927132	Proof of Concept
	561	Resource Exhaustion SNYK-DEBIAN12-NGHTTP2-5953379	Mature
	277	Unquoted Search Path or Element SNYK-DEBIAN12-OPENSSH-5788319	No Known Exploit

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