fix: correct logic

lib/manager/docker-compose/extract.js

@@ -38,5 +38,5 @@ function extractDependencies(content) {
     }
     lineNumber += 1;
   }
-  return deps.filter(dep => !dep.currentTag || dep.currentTag.includes('${'));
+  return deps.filter(dep => !(dep.currentTag && dep.currentTag.includes('${')));
 }