[Snyk] Security upgrade python from 3.8 to 3.10.0b2

[snyk-bot]

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

• docker/Dockerfile

We recommend upgrading to python:3.10.0b2, as this image has only 401 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
	511	Cleartext Transmission of Sensitive Information SNYK-DEBIAN11-CURL-1585138	No Known Exploit
	511	Cleartext Transmission of Sensitive Information SNYK-DEBIAN11-CURL-1585138	No Known Exploit
	511	Cleartext Transmission of Sensitive Information SNYK-DEBIAN11-CURL-1585138	No Known Exploit
	511	Cleartext Transmission of Sensitive Information SNYK-DEBIAN11-CURL-1585138	No Known Exploit
	500	Use After Free SNYK-DEBIAN11-GLIBC-1296898	No Known Exploit

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