fix step making other steps fail

.github/workflows/vib-build.yml

@@ -23,11 +23,14 @@ jobs:
       - name: Install dependencies
         run: sudo apt-get install jq
 
-      - name: Check if there was an update to the base image
+      - name: Download previous digest
         if: github.event_name != 'schedule'
         continue-on-error: true
+        run: wget https://github.com/${{ github.repository }}/releases/download/${{ env.DIGEST_RELEASE_TAG }}a/digest.txt
+
+      - name: Check if there was an update to the base image
+        if: github.event_name != 'schedule'
         run: |
-          wget https://github.com/${{ github.repository }}/releases/download/${{ env.DIGEST_RELEASE_TAG }}a/digest.txt
           touch digest.txt
           mv digest.txt last_digest.txt
           curl https://differ.vanillaos.org/images/desktop > vanilla-image-info