[8.17] Add sparse embedding models to list of compatible models (backport #2901)

[mergify]

With the change in elastic/eland#740 Eland now supports uploading 3rd party sparse embedding models (other than ELSER). This PR adds some models to the list of known compatible models.

The Eland command to install one of these models must use the text_expansion task type

eland_import_hub_model \
      --url 'http://localhost:9200' \
      -u elastic-admin -p elastic-password \
      --hub-model-id 'hotchpotch/japanese-splade-base-v1' \
      --task-type text_expansion 
```<hr>This is an automatic backport of pull request #2901 done by [Mergify](https://mergify.com).

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[szabosteve]

LGTM!