Add Doc Test for GPT-J (#16507)
* Required the values GPTJ unfortunately cannot run the model =)
* Added the file to the doc tests
* Run Fixup and Style
* Fixed with the test versions of gptj. Ran Style and Fixup.
* Trigger ci
* A Minor Change to License
* Fixed spacing added to the benchmark_utils. Then refactored tests to const variables.
* Removed strings that were included as default parameters anyways.
Co-authored-by: ArEnSc <xx.mike.chung.xx@gmail.com>