chore: prep v8.4.0 #3853

Job	Run time
api-doc node	25s
api-doc web	25s
build d	23s
build node	31s
build web	27s
test lint	22s
test standard	49s
example Web webpack	20s
example JS cjs	20s
test w/o optional dependencies	25s
example Web parcel	28s
example JS mjs	23s
test node (22, ubuntu-latest)	34s
test node (20, ubuntu-latest)	45s
test node (24, macos-latest)	44s
test node (20.18.0, macos-latest)	34s
test node (22, windows-latest)	2m 5s
example TS^5 mjs	26s
example TS^4 mjs	29s
example TS^5 cjs	20s
example TS^4 cjs	41s
test node (24, windows-latest)	1m 45s
test node (24, ubuntu-latest)	37s
test node (20.18.0, windows-latest)	1m 29s
test node (20, windows-latest)	2m 40s
test node (22, macos-latest)	36s
test node (20.18.0, ubuntu-latest)	39s
test node (20, macos-latest)	29s
example TS^4.0 cjs	23s
Publish test coverage	18s
	20m 52s

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