test: move test-http-server-request-timeouts-mixed

Test was moved to sequential a while back.

PR-URL: #54841
Reviewed-By: Yagiz Nizipli <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: LiviaMedeiros <[email protected]>
Reviewed-By: Matteo Collina <[email protected]>

Author: jasnell

test/parallel/parallel.status

@@ -44,8 +44,6 @@ test-worker-nearheaplimit-deadlock: PASS, FLAKY
 [$system==win32 && $arch==arm64]
 
 [$system==linux]
-# https://github.com/nodejs/node/issues/43465
-test-http-server-request-timeouts-mixed: PASS, FLAKY
 # https://github.com/nodejs/node/issues/54803
 test-performance-function: PASS, FLAKY
 # https://github.com/nodejs/node/issues/54346