Change the level of `ref` so it's the same as application.

6 jobs for master in 12 minutes and 22 seconds (queued for 22 seconds)
Status Job ID Name Coverage
  Build
passed #28988
fp
build-coq.8.7.1

00:05:07

passed #28987
fp
build-coq.8.7.2

00:05:16

passed #28986
fp-timing
build-coq.8.8.0

00:04:41

passed #28985
fp
build-coq.8.8.2

00:05:15

passed #28984
fp-timing
build-coq.8.9.0

00:05:10

passed #28983
fp
build-coq.dev

00:12:22