[Snyk] Security upgrade python from 3.12.3-alpine to 3.13.0rc1-alpine

[jmdawson]

Snyk has created this PR to fix 2 vulnerabilities in the dockerfile dependencies of this project.

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

Snyk changed the following file(s):

• Dockerfile

We recommend upgrading to python:3.13.0rc1-alpine, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Use After Free SNYK-ALPINE320-BUSYBOX-7233533	514
	Use After Free SNYK-ALPINE320-BUSYBOX-7233533	514
	Use After Free SNYK-ALPINE320-BUSYBOX-7233533	514
	Use After Free SNYK-ALPINE320-BUSYBOX-7233586	514
	Use After Free SNYK-ALPINE320-BUSYBOX-7233586	514

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[!IMPORTANT]

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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