Update notebook CI workflow to use version 1

Author: mgough-970

.github/workflows/notebook-scheduled.yml

@@ -10,7 +10,7 @@ on:
 
 jobs:
   execute-all:  
-    uses: spacetelescope/notebook-ci-actions/.github/workflows/notebook-ci-unified.yml@v1.0.0
+    uses: spacetelescope/notebook-ci-actions/.github/workflows/notebook-ci-unified.yml@v1
     with:
       execution-mode: 'on-demand'
       trigger-event: 'execute'
@@ -27,3 +27,4 @@ jobs:
 
 
 
+