Add draft release flag (#587)

This will upload the provenance to the existing draft release.

Signed-off-by: Hayden Blauzvern <[email protected]>

Author: haydentherapper

.github/workflows/release.yaml

@@ -72,3 +72,4 @@ jobs:
       base64-subjects: "${{ needs.release.outputs.hashes }}"
       upload-assets: true
       upload-tag-name: "${{ needs.release.outputs.tag_name }}" # Upload to tag rather than generate a new release
+      draft-release: true