test: set test-worker-nearheaplimit-deadlock flaky

The test is only flaky on x86 Windows.

Fixes: #50220
PR-URL: #50238
Refs: #49962
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>

Author: StefanStojanovic

test/parallel/parallel.status

@@ -14,6 +14,10 @@ test-fs-rmdir-recursive: PASS, FLAKY
 # https://github.com/nodejs/node/issues/49985
 test-runner-watch-mode: PASS, FLAKY
 
+# Windows on x86
+[$system==win32 && $arch==x86]
+test-worker-nearheaplimit-deadlock: PASS, FLAKY
+
 # Windows on ARM
 [$system==win32 && $arch==arm64]