declare tomlkit dependency

Author: nabobalis

pyproject.toml

@@ -4,7 +4,7 @@ name            = "spec0-action"
 description     = "Python code to update the lower bounds of Scientific Python libraries according to SPEC 0"
 requires-python = ">= 3.11"
 version         = "1.0.0"
-dependencies    = ["packaging>=25.0", "pandas>=2.3.3", "requests>=2.32.5,<3"]
+dependencies    = ["packaging>=25.0", "pandas>=2.3.3", "requests>=2.32.5,<3", "tomlkit>=0.13.3,<0.14"]
 
 [build-system]
 build-backend = "hatchling.build"
@@ -16,7 +16,6 @@ platforms = ["linux-64"]
 
 [tool.pixi.pypi-dependencies]
 spec0-action= { path = ".", editable = true }
-tomlkit                   = ">=0.13.3,<0.14"
 
 [tool.pixi.tasks]
 update-dependencies = { cmd = ["python", "run_spec0_update.py"] }