Fix an issue with detecting Uint8Array #8230

Job	Run time
Build CJS (18)	2m 33s
Build CJS (16)	2m 49s
Lint	2m 4s
Build Web	32s
Build Types (18)	1m 1s
Build ESM (18)	57s
Build Types (16)	1m 0s
Build ESM (16)	1m 0s
End-to-End ganache:ws (18, electron)	9m 29s
Integration IPC (18, geth, ipc)	9m 32s
End-to-End ganache:ws (18, chrome)	9m 1s
Integration IPC (16, geth, ipc)	9m 32s
End-to-End ganache:ws (18, firefox)	9m 6s
Integration (18, geth, http)	1m 58s
Unit Tests (18)	4m 1s
End-to-End ganache:ws (16, electron)	9m 42s
Unit Tests (16)	3m 59s
End-to-End ganache:ws (16, chrome)	9m 50s
Integration (18, geth, ws)	4m 25s
End-to-End ganache:ws (16, firefox)	9m 34s
Integration (18, ganache, http)	2m 57s
Integration (18, ganache, ws)	4m 34s
Build Docs (18)	4m 46s
Integration (16, geth, http)	2m 1s
Integration (16, geth, ws)	4m 30s
Integration (16, ganache, http)	2m 50s
Integration (16, ganache, ws)	4m 34s
	2h 8m 17s

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