chore(charts): pin the uv_build backend to an exact version

Co-Authored-By: mish@e2b.dev <mish@e2b.dev>

Author: devin-ai-integration[bot]

template/charts/pyproject.toml

@@ -23,7 +23,7 @@ module-name = ["e2b_charts"]
 module-root = ""
 
 [build-system]
-requires = ["uv_build>=0.10.0,<0.11.0"]
+requires = ["uv_build==0.13.4"]
 build-backend = "uv_build"
 
 [tool.ruff.lint]