test: set test-watch-mode-inspect as flaky

PR-URL: nodejs#50259
Refs: nodejs#49933
Reviewed-By: Moshe Atlow <[email protected]>
Reviewed-By: Geoffrey Booth <[email protected]>
Reviewed-By: Michael Dawson <[email protected]>
Reviewed-By: Vinícius Lourenço Claro Cardoso <[email protected]>

Author: anonrig

test/sequential/sequential.status

@@ -40,6 +40,8 @@ test-tls-psk-client: PASS, FLAKY
 test-tls-securepair-client: PASS, FLAKY
 
 [$arch==arm]
+# https://github.com/nodejs/node/issues/49933
+test-watch-mode-inspect: PASS, FLAKY
 
 [$arch==s390x]
 # https://github.com/nodejs/node/issues/41286