* HF API Embedders: refactoring
* rename variables
* rm leftovers
* rm pin
* rm unused import
* relnote
* warning with truncate/normalize and serverless inference API
* test that warnings are raised
* reduced usage of numpy and substituted built-in libraries
* added release note
* edited expit function to support both float as well as list (this case was giving error CI)
* revert code , numpy can't be removed here
* more cleaning
* fix relnote
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Co-authored-by: anakin87 <stefanofiorucci@gmail.com>