http: check for existance in resetHeadersTimeoutOnReqEnd
socket.parser can be undefined under unknown circumstances. This is a fix for a bug I cannot reproduce but it is affecting people.
Fixes: https://github.com/nodejs/node/issues/26366
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines