chore: bump isort_gaussdb package version to 0.0.2.dev4

Author: pangpang20

tools/isort-gaussdb/pyproject.toml

@@ -8,7 +8,7 @@ description = "isort plug-in to sort imports by module length first"
 # Note: to release a new version:
 # python -m build -o dist --wheel .
 # twine upload dist/isort_gaussdb-*-py3-none-any.whl
-version = "0.0.2.dev3"
+version = "0.0.2.dev4"
 
 [project.urls]
 Homepage = "https://github.com/HuaweiCloudDeveloper/gaussdb-python/"