🚨🚨🚨 [pipelines] update defaults in pipelines that can `generate` (#38129)
* pipeline generation defaults
* add max_new_tokens=20 in test pipelines
* pop all kwargs that are used to parameterize generation config
* add class attr that tell us whether a pipeline calls generate
* tmp commit
* pt text gen pipeline tests passing
* remove failing tf tests
* fix text gen pipeline mixin test corner case
* update text_to_audio pipeline tests
* trigger tests
* a few more tests
* skips
* some more audio tests
* not slow
* broken
* lower severity of generation mode errors
* fix all asr pipeline tests
* nit
* skip
* image to text pipeline tests
* text2test pipeline
* last pipelines
* fix flaky
* PR comments
* handle generate attrs more carefully in models that cant generate
* same as above