ICU-23056 Add workflow to generate commit checker report #3600

Job	Run time
clang-valgrind-intltest (utility)	7m 13s
clang-valgrind-test	10m 25s
clang-valgrind-intltest (normalize)	6m 7s
clang-valgrind-intltest (collator)	5m 0s
clang-valgrind-intltest (regex)	5m 17s
clang-valgrind-intltest (format)	16m 34s
clang-valgrind-intltest (translit)	6m 12s
clang-valgrind-intltest (rbbi)	9m 6s
clang-valgrind-intltest (rbnf)	6m 40s
clang-valgrind-intltest (rbnfrt)	6m 24s
clang-valgrind-intltest (icuserv)	5m 18s
clang-valgrind-intltest (idna)	5m 22s
clang-valgrind-intltest (convert)	6m 52s
clang-valgrind-intltest (rbnfp)	5m 41s
clang-valgrind-intltest (csdet)	5m 52s
clang-valgrind-intltest (spoof)	5m 38s
clang-valgrind-intltest (bidi)	5m 17s
	1h 58m 58s

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