Update our Actions to avoid set-output command

[dfreilich]

Description

A number of times in our Github Actions we use the set-output command to pass state from one stage to another. That is being deprecated in a number of months, and we should migrate to Github's new recommend path.

This is mentioned in the annotations of this job: https://github.com/buildpacks/pack/actions/runs/3558882069

Proposed solution

A workflow using save-state or set-output like the following

- name: Save state
  run: echo "::save-state name={name}::{value}"
- name: Set output
  run: echo "::set-output name={name}::{value}"

should be updated to write to the new GITHUB_STATE and GITHUB_OUTPUT environment files:

- name: Save state
  run: echo "{name}={value}" >> $GITHUB_STATE
- name: Set output
  run: echo "{name}={value}" >> $GITHUB_OUTPUT

Additional context

https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/
https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-commands-for-github-actions#environment-files

[SaumyaBhushan]

Hey @dfreilich I would like to work on this issue .

[SaumyaBhushan]

@dfreilich @natalieparellano Please review the pull request.