use the same azure/login SHA (#33463)

Author: Peter Bengtsson

.github/workflows/main-preview-docker-cache.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: 'Az CLI login'
-        uses: azure/login@66d2e78565ab7af265d2b627085bc34c73ce6abb
+        uses: azure/login@1f63701bf3e6892515f1b7ce2d2bf1708b46beaf
         with:
           creds: ${{ secrets.NONPROD_AZURE_CREDENTIALS }}