Add Color.scala to black list #32720

Job	Run time
test_non_bootstrapped	0s
test	53m 15s
test_scala2_library_tasty	1h 6m 41s
test_windows_fast	51m 10s
test_windows_full	0s
MiMa	13m 56s
community_build_a	59m 52s
community_build_b	1h 29m 30s
community_build_c	1h 6m 7s
test_sbt	18m 40s
test_java8	0s
build-msi-package	0s
build-sdk-package / build	7m 53s
build-chocolatey-package / build	16s
test-chocolatey-package	0s
publish_nightly	0s
publish_release	0s
nightly_documentation	0s
open_issue_on_failure	0s
	7h 7m 20s

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