fix: typo for ternary operator in CI

Author: sdkrystian

.github/workflows/ci.yml

@@ -442,7 +442,7 @@ jobs:
           name: demos${{ contains(fromJSON('["master", "develop"]'), github.ref_name) || format('-{0}', github.ref_name) || '' }}
           path: ${{ env.demos_path }}
           # develop and master are retained for longer so that they can be compared
-          retention-days: ${{ contains(fromJSON('["master", "develop"]'), github.ref_name) || '30' || '1' }}
+          retention-days: ${{ contains(fromJSON('["master", "develop"]'), github.ref_name) && '30' || '1' }}
 
       - name: Update website demos
         if: ${{ github.event_name == 'push' && (contains(fromJSON('["master", "develop"]'), github.ref_name) || startsWith(github.ref, 'refs/tags/')) }}