[Snyk] Security upgrade alpine from 3.9 to 3.22.2

[sathishp-eGov]

Snyk has created this PR to fix 3 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):

• backend/Dockerfile

We recommend upgrading to alpine:3.22.2, as this image has only 0 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
	NULL Pointer Dereference SNYK-ALPINE39-OPENSSL-1089231	621
	NULL Pointer Dereference SNYK-ALPINE39-OPENSSL-1089231	621
	Improper Certificate Validation SNYK-ALPINE39-OPENSSL-1089232	614
	Improper Certificate Validation SNYK-ALPINE39-OPENSSL-1089232	614
	Integer Overflow or Wraparound SNYK-ALPINE39-OPENSSL-1089235	614

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• Check the changes in this PR to ensure they won't cause issues with your project.
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• This PR was automatically created by Snyk using the credentials of a real user.

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🦉 NULL Pointer Dereference

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✨ Finishing touches

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