chore: update pyproject.toml files, remove codespell (#33028)

- Removes Codespell from deps, docs, and `Makefile`s
- Python version requirements in all `pyproject.toml` files now use the
`~=` (compatible release) specifier
- All dependency groups and main dependencies now use explicit lower and
upper bounds, reducing potential for breaking changes

libs/partners/exa/pyproject.toml

@@ -5,8 +5,8 @@ build-backend = "pdm.backend"
 [project]
 authors = []
 license = { text = "MIT" }
-requires-python = ">=3.9"
-dependencies = ["langchain-core<1.0.0,>=0.3.76", "exa-py<2.0.0,>=1.0.8"]
+requires-python = ">=3.9.0,<4.0.0"
+dependencies = ["langchain-core>=0.3.76,<1.0.0", "exa-py>=1.0.8,<2.0.0"]
 name = "langchain-exa"
 version = "0.3.1"
 description = "An integration package connecting Exa and LangChain"
@@ -19,27 +19,29 @@ repository = "https://github.com/langchain-ai/langchain"
 
 [dependency-groups]
 test = [
-    "pytest<8.0.0,>=7.3.0",
-    "freezegun<2.0.0,>=1.2.2",
-    "pytest-mock<4.0.0,>=3.10.0",
-    "syrupy<5.0.0,>=4.0.2",
-    "pytest-watcher<1.0.0,>=0.3.4",
-    "pytest-asyncio<1.0.0,>=0.21.1",
+    "pytest>=7.3.0,<8.0.0",
+    "pytest-mock>=3.10.0,<4.0.0",
+    "pytest-watcher>=0.3.4,<1.0.0",
+    "pytest-asyncio>=0.21.1,<1.0.0",
+    "pytest-benchmark",
+    "freezegun>=1.2.2,<2.0.0",
+    "syrupy>=4.0.2,<5.0.0",
     "langchain-core",
+    "langchain-tests",
 ]
-codespell = ["codespell<3.0.0,>=2.2.0"]
-lint = ["ruff<0.13,>=0.12.2"]
+lint = ["ruff>=0.12.2,<0.13.0"]
 dev = ["langchain-core"]
 test_integration = []
 typing = [
-    "mypy<2.0,>=1.10",
+    "mypy>=1.10.0,<2.0.0",
     "langchain-core",
-    "pydantic>2.0,<2.10", # TODO: support 2.10
+    "pydantic>2.0.0,<2.10.0", # TODO: support 2.10
 ]
 
 
 [tool.uv.sources]
 langchain-core = { path = "../../core", editable = true }
+langchain-tests = { path = "../../standard-tests", editable = true }
 
 [tool.mypy]
 disallow_untyped_defs = "True"