Change update-circt action to v1 to get updates

Change the version of the update-circt action used when running CD from an
explicit v1.0.0 to v1.  This will cause it to grab minor features and bug
fixes.  Practically, this pulls in a bug fix related to failing to
cherry-pick the staging branch.

Signed-off-by: Schuyler Eldridge <schuyler.eldridge@sifive.com>

.github/workflows/cd-circt.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: 'circt/update-circt'
-        uses: circt/update-circt@v1.0.0
+        uses: circt/update-circt@v1
         with:
           user: chiselbot
           email: chiselbot@users.noreply.github.com