[Snyk] Security upgrade alpine from 3.10.1 to 3.18.3

[dchourasia]

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:3.18.3, 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
	614	Out-of-bounds Read SNYK-ALPINE310-APKTOOLS-1246341	No Known Exploit
	714	Out-of-bounds Read SNYK-ALPINE310-APKTOOLS-1534688	No Known Exploit
	614	Improper Handling of Exceptional Conditions SNYK-ALPINE310-BUSYBOX-1090151	No Known Exploit
	714	Out-of-bounds Write SNYK-ALPINE310-MUSL-458452	No Known Exploit
	714	Out-of-bounds Write SNYK-ALPINE310-MUSL-458452	No Known Exploit

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[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: dchourasia
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[openshift-ci]

@dchourasia: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/ci-index	ef15f83	link	true	/test ci-index
ci/prow/48-ci-index	ef15f83	link	true	/test 48-ci-index
ci/prow/modh-operator-e2e	ef15f83	link	false	/test modh-operator-e2e
ci/prow/48-modh-operator-e2e-48	ef15f83	link	false	/test 48-modh-operator-e2e-48
ci/prow/48-images	ef15f83	link	true	/test 48-images
ci/prow/images	ef15f83	link	true	/test images

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