fix: tighten tag-value validation; auto-capture repository from GITHUB_REPOSITORY#12

lukekim merged 2 commits into

trunkspicehq/spice-cloud-deploy-action:trunkfrom

fix/tag-value-validation-and-auto-repospicehq/spice-cloud-deploy-action:fix/tag-value-validation-and-auto-repoCopy head branch name to clipboard