Bump transformers from 2.4.1 to 4.30.0

Bumps [transformers](https://github.com/huggingface/transformers) from 2.4.1 to 4.30.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v2.4.1...v4.30.0)

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

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

Author: dependabot[bot]

requirements.txt

@@ -8,4 +8,4 @@ sklearn==0.0
 tabulate==0.8.6
 torch==1.4.0
 tqdm==4.42.1
-transformers==2.4.1
+transformers==4.30.0

setup.py

@@ -10,7 +10,7 @@
     description='文本分类工具集',
     packages=find_packages(),
     install_requires=[
-        "transformers==2.4.1",
+        "transformers==4.30.0",
         "torch>=1.1.0",
         "Click>=7.0.0",
         "tabulate",