Add the Terratest E2E test work to the CI pipeline

[RothAndrew]

What/Why

Working PoC here: https://github.com/defenseunicorns/slash-command-dispatch-test/pull/5

• Remove hello and quote from the CI pipeline. We have real stuff to put in there now.
• Add e2e to CI pipeline. Run by adding /test e2e or /test all to a comment in any PR in this repo (after this gets merged)
  • Runs the new Terratest-based E2E test suite, which currently only consists of one test
• New required repo secret: AWS_ACCESS_KEY_ID_DEFENSEUNICORNS_COMMERCIAL_SA_ZARF (I created a user sa-zarf in the commercial AWS account)
• New required repo secret: AWS_SECRET_ACCESS_KEY_DEFENSEUNICORNS_COMMERCIAL_SA_ZARF
• New required repo secret: REGISTRY1_USERNAME_ROTHANDREW2 (will quickly be replaced by a service account once I get access to the secrets from the Zarf repo in Repo1)
• New required repo secret: REGISTRY1_PASSWORD_ROTHANDREW2 (will quickly be replaced by a service account once I get access to the secrets from the Zarf repo in Repo1)
• Break out the build-cli Makefile target into clean, build-cli-linux, and build-cli-mac for better efficiency in the pipeline

[jeff-mccoy]

Seems reasonable besides the asdf comment, just not sure what’s happening there and looking at it on mobile so lots of scrolling.

[jeff-mccoy]

Squash on merge please, lgtm