Find files and directories when pushing binaries to GCS

[hasheddan]

What type of PR is this?

/kind bug

What this PR does / why we need it:

This corrects a change that caused only files to be
pushed to GCS, which resulted in binaries in
directories such as /bin to be omitted.

This is currently causing tests, like those dependent on kubeadm to fail.

Which issue(s) this PR fixes:

Fixes #1227

Special notes for your reviewer:

@justaugustus I have tested this locally by comparing the outputs of the previous command and the command in this PR, but have not run a full mock. I could use some assistance if possible :)

Does this PR introduce a user-facing change?

NONE

[k8s-ci-robot]

@hasheddan: Adding label: do-not-merge/blocked-paths because PR changes a protected file.

Reasons for blocking this PR:

[Changes to certain release tools can affect our ability to test, build, and release Kubernetes. This PR must be explicitly approved by SIG Release repo admins.]

• lib/releaselib.sh

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/test-infra repository.

[hasheddan]

/cc @justaugustus @tpepper @neolit123

[neolit123]

thanks for the quick fix. LGTM.

[justaugustus]

Thanks @hasheddan!
/lgtm
/approve
/priority critical-urgent

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hasheddan, justaugustus

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