`collect-dataset` and `collect-search-results` returning empty datasets

[joverlee521]

Current Behavior

Scripts collect-dataset and collect-search-results, which collect dataset info from the nextstrain-data AWS S3 bucket return empty arrays for datasets. (See example in our scheduled GH Actions.)

This is resulting in an empty dataset list at https://nextstrain.org/influenza/ and empty search list at https://nextstrain.org/search/sars-cov-2.

I noticed the empty results when I was running collect-search-results manually for seasonal flu data.

[joverlee521]

Ah, the returned s3Objects is truncated, but we are not catching it in the script because the property should be IsTruncated instead of isTruncated.

[joverlee521]

Both scripts were removed in https://github.com/nextstrain/nextstrain.org/pull/694