docs(ses): add doc for legacyRegeneratorRuntimeTaming (#2425) #9088

Job	Run time
cover (18.x, ubuntu-latest)	2m 41s
lint (18.x, ubuntu-latest)	8m 12s
cover (20.x, ubuntu-latest)	1m 39s
lint (20.x, ubuntu-latest)	7m 29s
platform-compatibility-test (18.x, ubuntu-latest)	35s
test (18.x, ubuntu-latest)	2m 54s
platform-compatibility-test (20.x, ubuntu-latest)	35s
test (20.x, ubuntu-latest)	2m 46s
test262 (18.x, ubuntu-latest)	30s
test (22.4.1, ubuntu-latest)	2m 38s
test262 (20.x, ubuntu-latest)	52s
test-async-hooks (18, ubuntu-latest)	1m 33s
viable-release (18.x, ubuntu-latest)	5m 42s
test-async-hooks (20, ubuntu-latest)	32s
viable-release (20.x, ubuntu-latest)	5m 17s
	43m 55s

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