Bump olafurpg/setup-scala from 13 to 14 #1930

Job	Run time
conformance	1m 51s
build (2_12, mima)	1m 17s
build (2_12, e2e)	5s
build (2_12, test)	16m 8s
build (2_13, mima)	1m 54s
build (2_13, e2e)	10s
build (2_13, test)	14m 31s
build (3, mima)	5s
build (3, e2e)	5s
build (3, test)	13m 50s
build (2_12, examples_and_formatting)	3m 46s
build (2_13, scala3_compat_test)	10m 50s
build (3, scala3_compat_test)	13m 47s
ci-passed	3s
	1h 18m 22s

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