infra: Update package version to apply CVE-related patch (langchain-ai#19490)

- **Description:** [CVE
2024-21503](https://www.cve.org/CVERecord?id=CVE-2024-21503) was
recently identified. The python linter "black" suffers from a potential
Regex-related denial of service attack. Updated version from the
vulnerable 24.2.0 to the patched 24.3.0.
- **Issue:** N/A
- **Dependencies:** The 'black' package in both `langchain` (top-level)
and `templates/python-lint`.

Co-authored-by: Bagatur <[email protected]>

Author: JacobLezberg

poetry.lock

@@ -10,6 +10,7 @@ repository = "https://www.github.com/langchain-ai/langchain"
 
 [tool.poetry.dependencies]
 python = ">=3.8.1,<4.0"
+black = "^24.2.0"
 
 [tool.poetry.group.docs.dependencies]
 langchain = { path = "libs/langchain/", develop = true }

pyproject.toml

@@ -7,7 +7,7 @@ readme = "README.md"
 
 [tool.poetry.dependencies]
 ruff = ">=0.1.8"
-black = ">=23.12.0"
+black = "^24.2.0"
 mypy = ">=1.7.1"
 python = ">=3.8.1,<4.0"
 langchain = "^0.1"