[Snyk] Security upgrade alpine from 3.12 to 3.16.9

[odair-pedro]

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 alpine:3.16.9, 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
	714	Out-of-bounds Write SNYK-ALPINE312-ZLIB-2977082	No Known Exploit

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[coveralls]

Pull Request Test Coverage Report for Build 8681146727

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.07%) to 63.39%

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Totals
Change from base Build 2106229232:	-0.07%
Covered Lines:	561
Relevant Lines:	885

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💛 - Coveralls