JS: Update dataflow import in ConceptsImports.qll

Co-authored-by: Erik Krogh Kristensen <erik-krogh@github.com>

Author: RasmusWL

javascript/ql/lib/semmle/javascript/internal/ConceptsImports.qll

@@ -3,4 +3,4 @@
  * Since they are language-specific, they can't be placed directly in that file, as it is shared between languages.
  */
 
-import semmle.javascript.dataflow.DataFlow
+import semmle.javascript.dataflow.DataFlow::DataFlow as DataFlow