Update release script to handle Manage releases

USAGE
  gh release <command> [flags]

GENERAL COMMANDS
  create:      Create a new release
  list:        List releases in a repository

TARGETED COMMANDS
  delete:      Delete a release
  delete-asset: Delete an asset from a release
  download:    Download release assets
  edit:        Edit a release
  upload:      Upload assets to a release
  view:        View information about a release

FLAGS
  -R, --repo [HOST/]OWNER/REPO   Select another repository using the [HOST/]OWNER/REPO format

INHERITED FLAGS
  --help   Show help for command

LEARN MORE
  Use `gh <command> <subcommand> --help` for more information about a command.
  Read the manual at https://cli.github.com/manual failure

src/scripts/release.sh

@@ -44,7 +44,7 @@ confirm "Is this the release date: '${DATE}'?"
 
 # Make a new GitHub release.
 echo "Creating GitHub release:"
-gh release create "v${DATE}" --title "${DATE} Release" --notes-file build/new-entities.txt
+gh release create "v${DATE}" --title "${DATE} Release" --notes-file build/new-entities.txt || fail "Failed to create GitHub release"
 
 # Draft an announcement email.
 EMAIL="build/release-email.txt"