Change the version of the update-circt action from v1.0.0 to v1. This
pulls in a change from v1.0.1 which fixes a bug where the staging branch
was not updated. (I have no idea if this is being used.) However, this
generally future-proofs the action by having it pull from v1 which is
manually updated to match the latest v1 release (pulling in minor and
patch changes).
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>
