Update fs2-core to 3.9.4 #767

Job	Run time
Submit Dependencies	0s
Submit Dependencies	0s
Generate Site (ubuntu-latest, temurin@17)	2m 13s
Generate Site (ubuntu-latest, temurin@17)	2m 23s
Build and Test (ubuntu-latest, 3, temurin@8, rootJS)	3m 16s
Build and Test (ubuntu-latest, 3, temurin@8, rootJS)	5m 3s
Build and Test (ubuntu-latest, 3, temurin@8, rootJVM)	3m 18s
Build and Test (ubuntu-latest, 3, temurin@8, rootJVM)	4m 40s
Build and Test (ubuntu-latest, 3, temurin@8, rootNative)	3m 19s
Build and Test (ubuntu-latest, 3, temurin@8, rootNative)	7m 49s
Build and Test (ubuntu-latest, 3, temurin@17, rootJVM)	3m 3s
Build and Test (ubuntu-latest, 3, temurin@17, rootJVM)	3m 1s
post build	0s
Publish Artifacts	0s
Publish Artifacts	0s
post build (ubuntu-latest)	1s
	38m 6s

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