another fix to synch script

.github/workflows/build_iAPS.yml

@@ -71,7 +71,7 @@ jobs:
       run: |
         # Get ref for mountrcg/iAPS:autoISF
         SHA=$(curl -sS https://api.github.com/repos/${{ env.UPSTREAM_REPO }}/git/refs \
-          | jq '.[] | select(.ref == "refs/heads/main" ) | .object.sha' \
+          | jq '.[] | select(.ref == "refs/heads/autoISF" ) | .object.sha' \
           | tr -d '"'
         );