test: flaky everywhere test-trace-events-fs-sync

Refs: #21038

PR-URL: #22483
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/parallel.status

@@ -5,6 +5,8 @@ prefix parallel
 # sample-test                        : PASS,FLAKY
 
 [true] # This section applies to all platforms
+# https://github.com/nodejs/node/issues/21038
+test-trace-events-fs-sync: PASS,FLAKY
 
 [$system==win32]
 
@@ -17,7 +19,5 @@ prefix parallel
 [$system==solaris] # Also applies to SmartOS
 
 [$system==freebsd]
-# https://github.com/nodejs/node/issues/21038
-test-trace-events-fs-sync: PASS,FLAKY
 
 [$system==aix]