test: mark test-wasi as flaky on Windows on ARM

It has failed 22 PRs from the latest 100 CI runs.

PR-URL: nodejs#51834
Refs: nodejs#51822
Refs: nodejs/reliability#790
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

test/wasi/wasi.status

@@ -5,3 +5,8 @@ prefix wasi
 # sample-test                        : PASS,FLAKY
 
 [true] # This section applies to all platforms
+
+# Windows on ARM
+[$system==win32 && $arch==arm64]
+# https://github.com/nodejs/node/issues/51822
+test-wasi: PASS, FLAKY