[Snyk] Security upgrade alpine from 3.15.4 to 3

[progress44]

This PR was automatically created by Snyk using the credentials of a real user.


Snyk has created this PR to fix 5 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• images/backup/Dockerfile

We recommend upgrading to alpine:3, as this image has only 1 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Out-of-bounds Write SNYK-ALPINE315-ZLIB-2976173	714
	Use After Free SNYK-ALPINE315-OPENSSL-3314621	614
	Access of Resource Using Incompatible Type ('Type Confusion') SNYK-ALPINE315-OPENSSL-3314622	614
	Double Free SNYK-ALPINE315-OPENSSL-3314629	614
	Improper Certificate Validation SNYK-ALPINE315-OPENSSL-3368753	614

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Use After Free
🦉 Access of Resource Using Incompatible Type ('Type Confusion')
🦉 Double Free

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