GitLab

* closes #10258

* typo

* reworked deberta test

* implemented the comments from BigBird01 regarding sequence pair encoding of deberta

* Update style

* VOCAB_FILES_NAMES is now a oneliner as suggested by @sgugger
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* added #fmt: on as requested by @sgugger

* Style
Co-authored-by: Lysandre <lysandre.debut@reseau.eseo.fr>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Lysandre Debut <lysandre@huggingface.co>