trying to figure out, how to reduce the list of tags

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

.gitea/workflows/docker.yaml

@@ -47,10 +47,10 @@ jobs:
     steps:
       - name: Get tag list
         run: |
-          TAGS=$(curl -s -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_PASS }}" https://${{ secrets.REGISTRY_PATH }}/v2/umbrella/tags/list | jq -r ".tags[]")
+          TAGS="$(curl -s -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_PASS }}" https://${{ secrets.REGISTRY_PATH }}/v2/umbrella/tags/list | jq -r ".tags[]")"
           echo tags: $TAGS
-          COUNT=$(echo $TAGS | wc -l)
+          COUNT=$(echo "$TAGS" | wc -l)
           echo count: $COUNT
           REMAIN=$((COUNT - 10))
           echo remaining: $REMAIN
-          echo $TAGS | head -n $REMAIN
+          echo "$TAGS" | head -n $REMAIN