Add compat for `Libdl` to "<0.0.1, 1"

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (722d2ce) 84.55% compared to head (8d5a540) 84.55%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #894 +/- ## ======================================= Coverage 84.55% 84.55% ======================================= Files 3 3 Lines 816 816 ======================================= Hits 690 690 Misses 126 126 ```

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[sjkelly]

Thanks!