Update scala-library to 2.13.15 in series/0.6.x #1231

Job	Run time
Generate coverage report (2.13 JVM only) (ubuntu-latest, temurin@11)	1m 51s
Generate Site (ubuntu-latest, temurin@11)	2m 37s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJS)	5m 14s
Submit Dependencies	0s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJVM)	3m 54s
Validate Steward Config (ubuntu-latest, temurin@11)	12s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkNative)	5m 49s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJS)	5m 33s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJVM)	3m 53s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkNative)	5m 52s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJS)	5m 5s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJVM)	3m 50s
Build and Test (ubuntu-latest, 3, temurin@11, skunkNative)	6m 16s
Publish Artifacts	0s
	50m 6s

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