Update circe-core, circe-testing to 0.14.8 #320

Job	Run time
Build and Test (ubuntu-latest, 2.13.12, adopt-hotspot@8, jvm)	2m 23s
Build and Test (ubuntu-latest, 2.13.12, adopt-hotspot@11, jvm)	2m 32s
Build and Test (ubuntu-latest, 2.13.12, temurin@17, jvm)	2m 27s
Build and Test (ubuntu-latest, 2.13.12, temurin@17, js)	2m 27s
Build and Test (ubuntu-latest, 2.13.12, temurin@17, native)	2m 58s
Build and Test (ubuntu-latest, 2.12.17, adopt-hotspot@8, jvm)	2m 22s
Build and Test (ubuntu-latest, 2.12.17, adopt-hotspot@11, jvm)	2m 39s
Build and Test (ubuntu-latest, 2.12.17, temurin@17, jvm)	2m 25s
Build and Test (ubuntu-latest, 2.12.17, temurin@17, js)	2m 33s
Build and Test (ubuntu-latest, 2.12.17, temurin@17, native)	3m 15s
Build and Test (ubuntu-latest, 3.3.1, adopt-hotspot@8, jvm)	2m 32s
Build and Test (ubuntu-latest, 3.3.1, adopt-hotspot@11, jvm)	2m 32s
Build and Test (ubuntu-latest, 3.3.1, temurin@17, jvm)	2m 32s
Build and Test (ubuntu-latest, 3.3.1, temurin@17, js)	2m 34s
Build and Test (ubuntu-latest, 3.3.1, temurin@17, native)	3m 6s
Publish Artifacts	0s
	39m 17s

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