http: emit error on aborted ServerResponse #6991

Job	Run time
Build slim tarball	1m 9s
aarch64-linux: Cache V8 build	26s
x86_64-darwin: with shared libraries	37m 7s
x86_64-linux: with shared libraries	27m 34s
aarch64-darwin: with shared libraries	25m 5s
aarch64-linux: with shared openssl-3.0.19	24m 16s
aarch64-linux: with shared openssl-4.0.0	23m 18s
aarch64-linux: with shared openssl-1.1.1w	23m 13s
aarch64-linux: with shared boringssl-0.20260413.0	24m 21s
aarch64-linux: with shared openssl-3.6.1	24m 3s
aarch64-linux: with shared openssl-3.5.5	24m 3s
	3h 54m 35s

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