Fix warning in test_normalize

[Balandat]

Return the proper type of indices in get_init_args() for Normalize. This would cause the following warning:

botorch/models/transforms/input.py:362: UserWarning: To copy construct from a tensor, it is recommended to use sourceTensor.clone().detach() or sourceTensor.clone().detach().requires_grad_(True), rather than torch.tensor(sourceTensor).
    indices = torch.tensor(indices, dtype=torch.long)

[facebook-github-bot]

@Balandat has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[codecov]

Codecov Report

Merging #1876 (e03eb08) into main (6d329a8) will not change coverage.
The diff coverage is 100.00%.

❗ Current head e03eb08 differs from pull request most recent head d162feb. Consider uploading reports for the commit d162feb to get more accurate results

@@            Coverage Diff            @@
##              main     #1876   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          172       172           
  Lines        15093     15093           
=========================================
  Hits         15093     15093           

Impacted Files	Coverage Δ
botorch/models/transforms/input.py	100.00% <100.00%> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[facebook-github-bot]

@Balandat has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

@Balandat has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

@Balandat has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[facebook-github-bot]

@Balandat merged this pull request in f00057b.