Update sbt, scripted-plugin to 1.11.6 in 0.11.x #2844

Job	Run time
conformance	1m 47s
build (2_12, mima)	1m 10s
build (2_12, e2e)	3m 19s
build (2_13, mima)	1m 24s
build (2_12, test)	10m 55s
build (3, mima)	7s
build (2_13, scala3_compat_test)	9m 0s
build (2_13, test)	13m 37s
build (3, test)	11m 53s
build (3, e2e)	4m 20s
build (2_12, examples_and_formatting)	2m 36s
build (3, scala3_compat_test)	8m 59s
build (2_13, e2e)	4m 15s
ci-passed	3s
	1h 13m 25s

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