[Snyk] Security upgrade python from 3.9-slim to 3.12.0b1-slim

[Raj2020Github]

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

We recommend upgrading to python:3.12.0b1-slim, as this image has only 69 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
	150	Improper Verification of Cryptographic Signature SNYK-DEBIAN12-APT-1541449	No Known Exploit
	150	Improper Verification of Cryptographic Signature SNYK-DEBIAN12-APT-1541449	No Known Exploit
	150	Improper Input Validation SNYK-DEBIAN12-COREUTILS-1543939	No Known Exploit
	150	Race Condition SNYK-DEBIAN12-COREUTILS-1543947	No Known Exploit
	150	Resource Exhaustion SNYK-DEBIAN12-GCC12-2606941	No Known Exploit

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Improper Input Validation
🦉 Resource Exhaustion