test: increase inspect coverage

1. Truncate output for Primitives with 1 character left
Refs: https://coverage.nodejs.org/coverage-0b6d3070a176d437/lib/internal/util/inspect.js.html#L1359

2. Truncate output for ArrayBuffers using plural or singular bytes
Refs: https://coverage.nodejs.org/coverage-0b6d3070a176d437/lib/internal/util/inspect.js.html#L1465

PR-URL: https://github.com/nodejs/node/pull/36755


Reviewed-By: Zijian Liu <lxxyxzj@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>