fix nvalchemi version;

Author: misko

packages/fairchem-core/pyproject.toml

@@ -38,7 +38,7 @@ dev = ["pre-commit", "pytest", "pytest-cov", "coverage", "syrupy", "ruff==0.5.1"
 docs = ["jupyter-book", "jupytext", "sphinx","sphinx-autoapi==3.3.3", "astroid<4", "umap-learn", "vdict", "ipywidgets", "jupyter_book>=2.0", "torch-dftd"]
 adsorbml = ["dscribe", "x3dase", "scikit-image"]
 torchsim = ["torch-sim-atomistic>=0.5.2; python_version >= '3.12'"]
-extras = ["pymatgen", "quacc[phonons]>=0.15.3", "pandas", "nvalchemi-toolkit-ops", "pyarrow"]
+extras = ["pymatgen", "quacc[phonons]>=0.15.3", "pandas", "nvalchemi-toolkit-ops==0.2.0", "pyarrow"]
 
 [project.scripts]
 fairchem = "fairchem.core._cli:main"