Bump transformers from 4.16.2 to 4.30.0 in /codegen1

Bumps [transformers](https://github.com/huggingface/transformers) from 4.16.2 to 4.30.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.16.2...v4.30.0)

---
updated-dependencies:
- dependency-name: transformers
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

codegen1/requirements.txt

@@ -1,3 +1,3 @@
 --find-links https://download.pytorch.org/whl/torch_stable.html
 torch==1.9.0+cu111
-transformers==4.16.2
+transformers==4.30.0