Bump olafurpg/setup-scala from 13 to 14 #1929

Job	Run time
conformance	1m 48s
build (2_12, mima)	1m 48s
build (2_12, e2e)	8s
build (2_12, test)	5m 1s
build (2_13, mima)	1m 22s
build (2_13, e2e)	7s
build (2_13, test)	4m 1s
build (3, mima)	5s
build (3, e2e)	9s
build (3, test)	3m 48s
build (2_12, examples_and_formatting)	3m 30s
build (2_13, scala3_compat_test)	4m 35s
build (3, scala3_compat_test)	3m 58s
ci-passed	0s
	30m 20s

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