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GH-15156: [JS] Fix can't find variable: BigInt64Array (#15157)

Use the `BigInt64Array` and `BigUint64Array` types from `compat.ts` where it wasn't used.

This fixes the `ReferenceError: Can't find variable: BigInt64Array` that appears when the library is used in a browser without that support.

* Closes: #15156

Authored-by: Julien Roncaglia <julien@waldo.com>
Signed-off-by: Dominik Moritz <domoritz@gmail.com>