Fixed a test on NA

[dipterix]

No description provided.

[dipterix]

What this PR does:

This PR includes #177 and fixed testing issue on M1 mac caused by bit64 package (#178).

On my personal mac, the checking result is:

or

── R CMD check results ──────────────────────────────────────── hdf5r 1.3.3 ────
Duration: 1m 2.7s

> checking installed package size ... NOTE
    installed size is  5.3Mb

0 errors ✓ | 0 warnings ✓ | 1 note x

The checking results on other platforms can be viewed at https://github.com/dipterix/hdf5r/actions/runs/1121946923

What this PR doesn't

I cannot replicate the error on https://www.r-project.org/nosvn/R.check/r-release-macos-arm64/hdf5r-00install.html

I don't know how to fix that.