Use a different 'static' image that supports s390x and ppc

[dprotaso]

Updated image is recommended by Chainguard
Details here: https://www.chainguard.dev/unchained/changes-to-static-git-and-busybox-developer-images-2

Release Note

Support s390x/ppc when building our controllers

[dprotaso]

/cherry-pick release-1.15

[knative-prow-robot]

@dprotaso: once the present PR merges, I will cherry-pick it on top of release-1.15 in a new PR and assign it to you.

In response to this:

/cherry-pick release-1.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.19%. Comparing base (f55ab3c) to head (b3c86a1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1353   +/-   ##
=======================================
  Coverage   82.19%   82.19%           
=======================================
  Files          25       25           
  Lines        1601     1601           
=======================================
  Hits         1316     1316           
  Misses        189      189           
  Partials       96       96           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[ReToCode]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dprotaso, ReToCode

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [ReToCode,dprotaso]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[knative-prow-robot]

@dprotaso: new pull request created: #1354

In response to this:

/cherry-pick release-1.15

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.