✨ Add Webhooks in alpha generate subcommand

[yyy1000]

Description:

Support Webhooks in the alpha generate subcommand.

[k8s-ci-robot]

Hi @yyy1000. Thanks for your PR.

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[camilamacedo86]

/lgtm

[camilamacedo86]

/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: camilamacedo86, yyy1000

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