test: update es-module.status prefix

PR-URL: https://github.com/nodejs/node/pull/15690
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Timothy Gu <timothygu99@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/es-module/es-module.status

@@ -1,4 +1,4 @@
-prefix parallel
+prefix es-module
 
 # To mark a test as flaky, list the test name in the appropriate section
 # below, without ".js", followed by ": PASS,FLAKY". Example: