Update cats-effect, cats-effect-testkit to 3.5.6 in series/0.6.x #1234

Job	Run time
Generate Site (ubuntu-latest, temurin@11)	2m 16s
Generate coverage report (2.13 JVM only) (ubuntu-latest, temurin@11)	3m 1s
Submit Dependencies	0s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJS)	5m 21s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkJVM)	4m 5s
Build and Test (ubuntu-latest, 2.12, temurin@11, skunkNative)	6m 0s
Validate Steward Config (ubuntu-latest, temurin@11)	9s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJS)	6m 1s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkJVM)	3m 49s
Build and Test (ubuntu-latest, 2.13, temurin@11, skunkNative)	6m 10s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJS)	5m 50s
Build and Test (ubuntu-latest, 3, temurin@11, skunkJVM)	3m 48s
Build and Test (ubuntu-latest, 3, temurin@11, skunkNative)	6m 14s
Publish Artifacts	0s
	52m 44s

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