Update sbt to 1.9.7 (#1599) #1938

Job	Run time
build (2_12, mima)	1m 37s
build (2_12, e2e)	14s
conformance	1m 57s
build (2_12, test)	13m 55s
build (2_13, mima)	1m 47s
build (2_13, e2e)	5s
build (2_13, test)	14m 39s
build (3, mima)	7s
build (3, e2e)	8s
build (3, test)	12m 44s
build (2_12, examples_and_formatting)	4m 16s
build (2_13, scala3_compat_test)	10m 28s
build (3, scala3_compat_test)	13m 3s
ci-passed	2s
	1h 15m 2s

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