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

[ryan-ally]

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

• cmd/metricscollector/v1beta1/tfevent-metricscollector/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	Information Exposure SNYK-DEBIAN12-GLIBC-1546991	No Known Exploit
	150	Uncontrolled Recursion SNYK-DEBIAN12-GLIBC-1547039	No Known Exploit
	150	Uncontrolled Recursion SNYK-DEBIAN12-GLIBC-1547069	No Known Exploit
	150	Use of Insufficiently Random Values SNYK-DEBIAN12-GLIBC-1547135	No Known Exploit
	571	Integer Overflow or Wraparound SNYK-DEBIAN12-ZLIB-6008963	No Known Exploit

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[coveralls]

Pull Request Test Coverage Report for Build 6593508152

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 73.091%

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Totals
Change from base Build 4411813555:	0.2%
Covered Lines:	3121
Relevant Lines:	4270

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💛 - Coveralls