test: deflake async-hooks statwatcher test #7202

Job	Run time
Build slim tarball	1m 19s
aarch64-linux: Cache V8 build	23s
aarch64-darwin: with shared libraries	24m 52s
x86_64-linux: with shared libraries	28m 18s
x86_64-darwin: with shared libraries	36m 50s
aarch64-linux: with shared openssl-1.1.1w	25m 41s
aarch64-linux: with shared openssl-3.0.19	26m 24s
aarch64-linux: with shared openssl-4.0.0	26m 12s
aarch64-linux: with shared boringssl-0.20260413.0	25m 50s
aarch64-linux: with shared openssl-3.5.5	25m 54s
aarch64-linux: with shared openssl-3.6.1	25m 48s
	4h 7m 31s

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