ICU-22264 Add -fsanitize=cfi-icall #2953

Job	Run time
clang-valgrind-intltest (utility)	6m 55s
clang-valgrind-test	10m 15s
clang-valgrind-intltest (normalize)	6m 51s
clang-valgrind-intltest (collator)	4m 58s
clang-valgrind-intltest (regex)	5m 39s
clang-valgrind-intltest (format)	16m 17s
clang-valgrind-intltest (translit)	6m 9s
clang-valgrind-intltest (rbbi)	7m 52s
clang-valgrind-intltest (rbnf)	6m 9s
clang-valgrind-intltest (rbnfrt)	6m 31s
clang-valgrind-intltest (icuserv)	5m 13s
clang-valgrind-intltest (idna)	5m 24s
clang-valgrind-intltest (convert)	6m 45s
clang-valgrind-intltest (rbnfp)	5m 22s
clang-valgrind-intltest (csdet)	5m 13s
clang-valgrind-intltest (spoof)	5m 11s
clang-valgrind-intltest (bidi)	5m 37s
	1h 56m 21s

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