Install `x86_64-apple-darwin` target before building bindings on `macos-latest`

[charlesbluca]

Looks like we're starting to see failures in our macOS test builds:

https://github.com/dask-contrib/dask-sql/actions/runs/8852325552/job/24312113450?pr=1328

Taking the suggestion from the error logs seems to resolve things:

  = note: the `x86_64-apple-darwin` target may not be installed
  = help: consider downloading the target with `rustup target add x86_64-apple-darwin`

[codecov-commenter]

Codecov Report

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

Project coverage is 76.74%. Comparing base (b473fd6) to head (7db333d).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1329 +/- ## ========================================== - Coverage 85.32% 76.74% -8.58% ========================================== Files 77 77 Lines 4231 4231 Branches 791 791 ========================================== - Hits 3610 3247 -363 - Misses 453 838 +385 + Partials 168 146 -22 ```

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