S3 downloader has a hardcoded limit of 100 files

[slik13]

Currently the S3 downloader has a hardcoded limit of 100 files (see: https://github.com/kserve/modelmesh-runtime-adapter/blob/2d5bb69e9ed19efd74fbe6f8b76ec2e970702e3c/pullman/storageproviders/s3/downloader.go#L79C3-L79C27).

This means that any model that contains more than 100 files gets cut off at that arbitrary file and causes the model to only be partially copied and then subsequently fails at runtime. For example, when using a model like the argos-translate model with many languages you can exceed the 100 file limit.

1.7132796006805687e+09	DEBUG	Triton Adapter.Triton Adapter Server	found objects to download	{"type": "s3", "cacheKey": "s3|xyz", "path": "translate", "count": 100}

This limit seems arbitrary and should be made configurable.