Update gha

[jsegal205]

fixes #716

Updates GHA workflow to not use ::set_output (as that's a deprecated command) but push to $GITHUB_OUTPUT and updates to create a comma separated list of files changed, and then explode that into a proper array when running the validation against it.

Updates validate company GHA to use https://github.com/tj-actions/changed-files to address ::set_output warning.

also bumps

• checkout to v4 to use node lts version changelog
• docker/setup-buildx-action to v3 to also support node lts and updates to use >> $GITHUB_OUTPUT

[jsegal205]

checkout action only gets a single commit by default. from the docs - fetch-depth: 0 indicates all history for all branches and tags is fetched

[btkostner]

Use this action instead. It can return a list of changed company files and handles extending the depth as needed. That way we can still have fast clones.

https://github.com/tj-actions/changed-files

[jsegal205]

Dang you are so wise @btkostner 🙇 . I looked up get changed files github actions and got https://github.com/jitterbit/get-changed-files which has been out of date for 3+ years so I thought to go with some bash-magic I should have searched around a bit more.

But putting a positive spin on this, I learned a bunch about bash and github context in workflows.

[jsegal205]

updated! ty for the grand suggestion again.