http: emit error on aborted ServerResponse #6992

Job	Run time
Build slim tarball	1m 12s
aarch64-linux: Cache V8 build	24s
x86_64-linux: with shared libraries	22m 35s
aarch64-darwin: with shared libraries	25m 41s
x86_64-darwin: with shared libraries	36m 56s
aarch64-linux: with shared openssl-1.1.1w	23m 29s
aarch64-linux: with shared openssl-3.0.19	23m 38s
aarch64-linux: with shared boringssl-0.20260413.0	23m 35s
aarch64-linux: with shared openssl-4.0.0	22m 38s
aarch64-linux: with shared openssl-3.5.5	23m 58s
aarch64-linux: with shared openssl-3.6.1	22m 42s
	3h 46m 48s

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