GitLab

* support SDPA Attention in stablelm

* add integration test

* add fallback for output_attentions

* Update src/transformers/models/stablelm/modeling_stablelm.py
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>

* Update tests/models/stablelm/test_modeling_stablelm.py
Co-authored-by: Younes Belkada <49240599+younesbelkada@users.noreply.github.com>

* Update src/transformers/models/stablelm/modeling_stablelm.py
Co-authored-by: Younes Belkada <49240599+younesbelkada@users.noreply.github.com>

* handle non-contiguous states

---------
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
Co-authored-by: Younes Belkada <49240599+younesbelkada@users.noreply.github.com>