Set up some actions for presubmit validation

[mattmoor]

We have loads of these in our mono repo, and many of these are based on workflows we've forked repeatedly over the years.

I'm tempted to set up chainguard-dev/actions where we can stuff reusable workflows with workflow_call that we can recycle across our various repos over time.

cc @n3wscott @k4leung4

[cpanato]

hum, sounds a nice idea

[k4leung4]

+1

it would make it easier if we are looking to reuse actions/workflows outside of mono.

[cpanato]

@mattmoor if you create the repo, i can submit PRs to add initial jobs

[cpanato]

made a quick one in my own github

the shared job: https://github.com/cpanato/actions-reusable-test/blob/main/.github/workflows/build-test-go.yml
running in another repo: https://github.com/cpanato/testing-ci-providers/actions/runs/1874993811

[mattmoor]

I am starting with some composite workflows here to replace some of the ones we've been copying around from Knative forever: https://github.com/chainguard-dev/actions

[cpanato]

super cool

[kaniini]

We're now using chainguard-dev/actions integration, so I think this can be closed. Reopen if there's more stuff we want to add.