[Snyk] Security upgrade python from 3.7-alpine to 3.12.0a1-alpine

[kaocher82]

Snyk has created this PR to fix 5 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:3.12.0a1-alpine, as this image has only 18 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
	Integer Overflow or Wraparound SNYK-ALPINE318-EXPAT-7908292	786
	Integer Overflow or Wraparound SNYK-ALPINE318-EXPAT-7908293	786
	XML External Entity (XXE) Injection SNYK-ALPINE318-EXPAT-7908294	786
	Resource Exhaustion SNYK-ALPINE318-EXPAT-6241039	614
	CVE-2023-5363 SNYK-ALPINE318-OPENSSL-6032386	614

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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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🦉 XML External Entity (XXE) Injection
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