[Snyk] Security upgrade alpine from 3.22.2 to 3.22.3

[xero]

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):

• Dockerfile

We recommend upgrading to alpine:3.22.3, 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
	CVE-2025-69421 SNYK-ALPINE322-OPENSSL-15121226	614
	CVE-2025-69421 SNYK-ALPINE322-OPENSSL-15121226	614
	CVE-2025-46394 SNYK-ALPINE322-BUSYBOX-14091698	364
	CVE-2025-46394 SNYK-ALPINE322-BUSYBOX-14091698	364
	CVE-2024-58251 SNYK-ALPINE322-BUSYBOX-14091701	364

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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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[Copilot]

Pull request overview

Updates the project’s final Docker runtime base image to pick up Alpine security fixes, aligning with the repo’s containerized deployment approach.

Changes:

• Bump final stage base image from alpine:3.22.2 to alpine:3.22.3.