Dotty

Bump Scala CLI to v1.8.0 (was v1.7.1) (#23168) #35583

Job	Run time
test_non_bootstrapped	27m 46s
test_scala2_library_tasty	0s
test	1h 17m 3s
test_windows_full	46m 20s
community_build_a	50m 30s
community_build_b	1h 18m 46s
MiMa	9m 36s
test_windows_fast	0s
build-msi-package	0s
community_build_c	1h 1m 49s
test_java8	0s
test_sbt	15m 44s
build-sdk-package / build	9m 17s
test-msi-package	0s
build-chocolatey-package / build	23s
test-chocolatey-package	0s
publish_nightly	0s
publish_release	0s
nightly_documentation	0s
open_issue_on_failure	0s
	6h 17m 14s

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