test: set sea snapshot tests as flaky

PR-URL: #50223
Refs: #49630
Reviewed-By: Darshan Sen <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>

Author: anonrig

test/sequential/sequential.status

@@ -14,6 +14,9 @@ test-watch-mode-inspect: PASS, FLAKY
 [$system==win32]
 # https://github.com/nodejs/node/issues/47116
 test-http-max-sockets: PASS, FLAKY
+# https://github.com/nodejs/node/issues/49630
+test-single-executable-application-snapshot: PASS, FLAKY
+test-single-executable-application-snapshot-and-code-cache: PASS, FLAKY
 
 [$system==linux]