Testing PR: test dropping CI Ubuntu version from 22.04 to 20.04 #42

Job	Run time
clang-valgrind-test	9m 42s
clang-valgrind-intltest (utility)	5m 59s
clang-valgrind-intltest (normalize)	6m 3s
clang-valgrind-intltest (collator)	4m 51s
clang-valgrind-intltest (regex)	4m 57s
clang-valgrind-intltest (format)	16m 9s
clang-valgrind-intltest (translit)	5m 35s
clang-valgrind-intltest (rbbi)	6m 35s
clang-valgrind-intltest (rbnf)	6m 0s
clang-valgrind-intltest (rbnfrt)	5m 51s
clang-valgrind-intltest (icuserv)	4m 45s
clang-valgrind-intltest (idna)	4m 49s
clang-valgrind-intltest (convert)	6m 28s
clang-valgrind-intltest (rbnfp)	5m 2s
clang-valgrind-intltest (csdet)	4m 39s
clang-valgrind-intltest (spoof)	4m 56s
clang-valgrind-intltest (bidi)	4m 55s
	1h 47m 16s

Provide feedback