[css-multicol-1] close tests in ED

Author: rachelandrew

css-multicol-1/Overview.bs

@@ -8,7 +8,7 @@ Prepare for TR: no
 Implementation Report: https://test.csswg.org/harness/results/css-multicol-1_dev/grouped/
 Work Status: Testing
 WPT Path Prefix: /css/css-multicol/
-WPT Display: open
+WPT Display: closed
 ED: https://drafts.csswg.org/css-multicol/
 TR: https://www.w3.org/TR/css-multicol-1/
 Previous Version: https://www.w3.org/TR/2021/CR-css-multicol-1-20211012/