fix(ci): harden auto-merge, add build validation, and post-deploy smoke test - #4433

fix(ci): harden auto-merge, add build validation, and post-deploy smoke test#4433

cmcarthur wants to merge 9 commits into

masterdbt-labs/hub.getdbt.com:masterfrom

safety/ci-validation-and-auto-merge-hardeningdbt-labs/hub.getdbt.com:safety/ci-validation-and-auto-merge-hardeningCopy head branch name to clipboard