ci: trigger builds using a temporary build branch

Change-Id: Ie8733b90a2e3af2b37a8113beb390d905110b970
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/6320
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
diff --git a/.github/workflows/gen.go b/.github/workflows/gen.go
index 440ab08..d4d12be 100644
--- a/.github/workflows/gen.go
+++ b/.github/workflows/gen.go
@@ -1,4 +1,3 @@
 package workflows
 
-// Disable generation of this script for now.
-// go:generate go run cuelang.org/go/cmd/cue cmd genworkflows cuelang.org/go/internal/ci
+//go:generate go run cuelang.org/go/cmd/cue cmd genworkflows cuelang.org/go/internal/ci