Added metric MultiplexDisabled_ext #4241 #50

Job	Run time
cache / lock	1s
cache / lock	1h 2m 44s
cache / builds	1s
cache / unlock	2s
cache / unlock	2s
run / select	2s
run / select	2s
run / tests (tests)	2m 18s
run / tests (tests)	1h 26m 49s
run / tests (tests_with_deps/deprecate_eof_support)	2m 1s
run / tests (tests_with_deps/deprecate_eof_support)	11m 27s
cache / builds (centos6)	3s
cache / builds (centos7)	2s
cache / builds (debian11)	4s
cache / builds (fedora37, -clang)	4s
cache / builds (ubuntu22, -clang)	3s
cache / builds (ubuntu22, -tap)	4s
	2h 45m 49s

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