Update scalafmt-core to 3.10.6 #609

Job	Run time
Build and Test (ubuntu-latest, 3.3.4, zulu@8)	1m 46s
Build and Test (ubuntu-latest, 2.13.16, zulu@8)	1m 33s
Build and Test (ubuntu-latest, 2.12.20, zulu@8)	4m 24s
Publish Artifacts	-1s
	7m 42s

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