test: set test-single-executable-application-empty as flaky

PR-URL: #54802
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matthew Aitken <maitken033380023@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>

Author: anonrig

test/sequential/sequential.status

@@ -25,6 +25,8 @@ test-http2-large-file: PASS, FLAKY
 [$system==linux]
 
 [$system==macos]
+# https://github.com/nodejs/node/issues/54816
+test-single-executable-application-empty: PASS, FLAKY
 
 [$system==solaris] # Also applies to SmartOS