chore(cmd/push): uniform receiver for push command

[alacuku]

What type of PR is this?

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/kind bug

/kind cleanup

/kind design

/kind documentation

/kind failing-test

/kind feature

/kind flaky-test

Any specific area of the project related to this PR?

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/area library

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What this PR does / why we need it:

chore(cmd/push): uniform receiver for push command

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

[alacuku]

/milestone v0.8.0

[poiana]

@alacuku: You must be a member of the falcosecurity/falcoctl-maintainers GitHub team to set the milestone. If you believe you should be able to issue the /milestone command, please contact your maintainers of falcosecurity/falcoctl and have them propose you as an additional delegate for this responsibility.

In response to [this](https://github.com/falcosecurity/falcoctl/pull/498#issuecomment-2027047241): >/milestone v0.8.0 Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.

[poiana]

LGTM label has been added.

Git tree hash: 7c3d908bc18e2729c56a2a09ce730f563170c8ce

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alacuku, FedeDP

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