Update scalafmt-core to 3.7.12 in series/0.6.x #776

Job	Run time
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJS)	6m 58s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJVM)	4m 59s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkNative)	9m 51s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJS)	5m 55s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJVM)	6m 3s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkNative)	7m 21s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJS)	6m 44s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJVM)	5m 13s
Build and Test (ubuntu-latest, 3, temurin@11, skunkNative)	8m 20s
Generate coverage report (2.13 JVM only) (ubuntu-latest, 2.13.10, temurin@11)	2m 38s
Submit Dependencies	0s
Generate Site (ubuntu-latest, temurin@11)	2m 9s
Publish Artifacts	0s
	1h 6m 11s

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