chore: remove black as dependency (#808)

We use `ruff` in CI and dev workflow now.

python/README.md

@@ -45,8 +45,8 @@ pytest
 To run linter and automatically fix all errors:
 
 ```bash
-black .
-isort .
+ruff format python
+ruff --fix python
 ```
 
 If any packages are missing, install them with:
@@ -82,4 +82,4 @@ pip install tantivy
 To run the unit tests:
 ```bash
 pytest
-```
+```

python/pyproject.toml

@@ -49,7 +49,7 @@ repository = "https://github.com/lancedb/lancedb"
 
 [project.optional-dependencies]
 tests = ["aiohttp", "pandas>=1.4", "pytest", "pytest-mock", "pytest-asyncio", "duckdb", "pytz"]
-dev = ["ruff", "pre-commit", "black"]
+dev = ["ruff", "pre-commit"]
 docs = ["mkdocs", "mkdocs-jupyter", "mkdocs-material", "mkdocstrings[python]"]
 clip = ["torch", "pillow", "open-clip"]
 embeddings = ["openai>=1.6.1", "sentence-transformers", "torch", "pillow", "open-clip-torch", "cohere", "InstructorEmbedding"]
@@ -61,9 +61,6 @@ lancedb = "lancedb.cli.cli:cli"
 requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
-[tool.isort]
-profile = "black"
-
 [tool.ruff]
 select = ["F", "E", "W", "I", "G", "TCH", "PERF"]