deps: upgrade npm to 11.15.0 #7010

Job	Run time
Build slim tarball	1m 9s
aarch64-linux: Cache V8 build	24s
x86_64-linux: with shared libraries	26m 20s
x86_64-darwin: with shared libraries	38m 35s
aarch64-darwin: with shared libraries	32m 46s
aarch64-linux: with shared openssl-1.1.1w	22m 18s
aarch64-linux: with shared openssl-4.0.0	22m 36s
aarch64-linux: with shared openssl-3.0.19	22m 58s
aarch64-linux: with shared openssl-3.5.5	23m 16s
aarch64-linux: with shared boringssl-0.20260413.0	22m 58s
aarch64-linux: with shared openssl-3.6.1	22m 52s
Build slim tarball	1m 9s
aarch64-darwin: with shared libraries	25m 3s
aarch64-linux: Cache V8 build	24s
x86_64-darwin: with shared libraries	38m 35s
x86_64-linux: with shared libraries	26m 20s
aarch64-linux: with shared openssl-4.0.0	22m 36s
aarch64-linux: with shared openssl-3.5.5	23m 16s
aarch64-linux: with shared openssl-1.1.1w	22m 18s
aarch64-linux: with shared boringssl-0.20260413.0	22m 58s
aarch64-linux: with shared openssl-3.0.19	22m 58s
aarch64-linux: with shared openssl-3.6.1	22m 52s
	7h 44m 41s

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