Migrate action to run on Node16

[lsytj0413]

Is your feature request related to a problem? Please describe.

• When run prow-actions, got this warning: Node.js 12 actions are deprecated. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/. Please update the following actions to use Node.js 16: jpmcb/prow-github-actions

Describe the solution you'd like

• Without any warning

Describe alternatives you've considered

Additional context

[jpmcb]

Thank you so much for the heads up! Good call - will take care of this as soon as I can!