test: mark test-http-server-request-timeouts-mixed as flaky

This has been flaking the CI for more than 2 years with various attempts to fix without success. It has still been flaking the CI (failed 19 out of 100 recent testing CI runs). It's time to mark it as flaky. PR-URL: #56503 Refs: #43465 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Jake Yuesong Li <[email protected]>

Author: joyeecheung

test/sequential/sequential.status

@@ -28,6 +28,9 @@ test-http-server-request-timeouts-mixed: PASS, FLAKY
 # https://github.com/nodejs/node/issues/54816
 test-single-executable-application-empty: PASS, FLAKY
 
+# https://github.com/nodejs/node/issues/43465
+test-http-server-request-timeouts-mixed: PASS, FLAKY
+
 [$system==solaris] # Also applies to SmartOS
 
 [$system==freebsd]