[Snyk] Security upgrade alpine from 3.14.3 to 3.16.7

[ineffyble]

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

• image/Dockerfile

We recommend upgrading to alpine:3.16.7, as this image has only 0 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
	400	CVE-2022-28391 SNYK-ALPINE314-BUSYBOX-2440608	No Known Exploit
	400	Loop with Unreachable Exit Condition ('Infinite Loop') SNYK-ALPINE314-OPENSSL-2426333	No Known Exploit
	400	Double Free SNYK-ALPINE314-OPENSSL-3314653	No Known Exploit
	400	Improper Certificate Validation SNYK-ALPINE314-OPENSSL-3368739	No Known Exploit
	500	Out-of-bounds Write SNYK-ALPINE314-ZLIB-2976174	No Known Exploit

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