Investigate flaky parallel/test-gc-http-client #22336

00:08:04 not ok 694 parallel/test-gc-http-client
00:08:04   ---
00:08:04   duration_ms: 0.545
00:08:04   severity: fail
00:08:04   exitcode: 1
00:08:04   stack: |-
00:08:04     We should do 500 requests
00:08:04     Done: 0/500
00:08:04     Collected: 0/154
00:08:04     events.js:167
00:08:04           throw er; // Unhandled 'error' event
00:08:04           ^
00:08:04     
00:08:04     Error: connect ECONNRESET 127.0.0.1:15615 - Local (127.0.0.1:27660)
00:08:04         at internalConnect (net.js:933:16)
00:08:04         at defaultTriggerAsyncIdScope (internal/async_hooks.js:294:19)
00:08:04         at GetAddrInfoReqWrap.emitLookup [as callback] (net.js:1080:9)
00:08:04         at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:62:10)
00:08:04     Emitted 'error' event at:
00:08:04         at Socket.socketErrorListener (_http_client.js:399:9)
00:08:04         at Socket.emit (events.js:182:13)
00:08:04         at emitErrorNT (internal/streams/destroy.js:82:8)
00:08:04         at emitErrorAndCloseNT (internal/streams/destroy.js:50:3)
00:08:04         at process._tickCallback (internal/process/next_tick.js:63:19)
00:08:04   ...