Bump base images for agnhost

[riendeau]

What type of PR is this?

/kind cleanup
/kind bug

What this PR does / why we need it:

Bumps the alpine version used by the agnhost image from 3.12 to 3.16 to get to a version that is still supported and receiving security fixes.

Which issue(s) this PR fixes:

Fixes #124377

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: riendeau / name: John Riendeau (62191f6)

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[aojea]

/ok-to-test

Please sign the CLA

[mkumatag]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 0e9a3cf9fd2d49c801cffa84354e2f338df87976

[riendeau]

/retest

Please sign the CLA

Ack. I will be signing as a corporate contributor and am making sure I've got all the right boxes ticked on my side; apologies for the delay.

[pacoxu]

/easycla
/check-cla

[riendeau]

CLA signed and PR rebased.

[aojea]

should not we go to a more recent version https://alpinelinux.org/releases/ , this will be EOL in 2024-05-23 , I would not use 3.19 as it is still very recent but 3.18 seems to be out for a while

[riendeau]

3.16 is the oldest version which is still receiving security fixes; I chose to move there in the interest of making the minimal changes necessary to satisfy that requirement, rather than jumping to more recent releases and potentially increasing the risk of unintended side-effects.

If the preference would be to move to 3.18, however, I'd be happy to update the PR.

[aojea]

your logic sounds better than mine :)

[aojea]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 8fc729c6780ba572d23ae2de70ddbfdd9bb18570

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: aojea, mkumatag, riendeau

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• test/images/agnhost/OWNERS [aojea,mkumatag]

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/retest