Dotty

Exclude flaky fs2 tests from community-build #33120

Job	Run time
test_non_bootstrapped	0s
test	55m 6s
test_windows_fast	32m 17s
MiMa	11m 51s
test_scala2_library_tasty	0s
test_windows_full	0s
community_build_b	1h 18m 35s
community_build_c	1h 0m 59s
community_build_a	53m 34s
test_sbt	19m 20s
test_java8	0s
build-msi-package	0s
build-sdk-package / build	8m 12s
test-msi-package	0s
build-chocolatey-package / build	24s
test-chocolatey-package	0s
publish_nightly	0s
publish_release	0s
nightly_documentation	0s
open_issue_on_failure	0s
	5h 20m 18s

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