deps: update undici to 8.3.0 #6824

Job	Run time
Build slim tarball	1m 9s
aarch64-linux: Cache V8 build	22s
aarch64-darwin: with shared libraries	30m 35s
x86_64-darwin: with shared libraries	38m 25s
x86_64-linux: with shared libraries	31m 23s
aarch64-linux: with shared boringssl-0.20260413.0	25m 24s
aarch64-linux: with shared openssl-1.1.1w	25m 52s
aarch64-linux: with shared openssl-3.5.5	25m 16s
aarch64-linux: with shared openssl-3.6.1	25m 46s
aarch64-linux: with shared openssl-4.0.0	25m 45s
aarch64-linux: with shared openssl-3.0.19	25m 51s
	4h 15m 48s

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