fix(specs): recommend `_score` is optional #20868

Job	Run time
setup	54s
notification	8s
specs	56s
scripts	49s
client [email protected]	6m 46s
client [email protected]	5m 34s
client [email protected]	3m 55s
client [email protected]	3m 22s
client java@8	3m 52s
client java@11	3m 41s
client java@21	3m 48s
client java@17	4m 7s
client [email protected]	6m 11s
client [email protected]	3m 55s
client [email protected]	3m 58s
client [email protected]	4m 34s
client [email protected]	4m 4s
client [email protected]	4m 0s
client [email protected]	4m 7s
client [email protected]	3m 13s
client [email protected]	7m 45s
client [email protected]	9m 55s
codegen	1m 6s
client [email protected] macos	4m 7s
client [email protected] macos	4m 24s
check_green	1s
push_and_release	0s
	1h 39m 12s

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