BLD: add joblib as dependency for hashing pandas

pyproject.toml

@@ -1,11 +1,11 @@
 [build-system]
 requires = [
-  "scikit-build-core[pyproject]<0.6.0",
-  "swig",
-  "numpy==1.19.2; python_version == '3.8'",
-  "numpy==1.19.5; python_version == '3.9'",
-  "numpy==1.21.6; python_version == '3.10'",
-  "numpy==1.23.5; python_version == '3.11'",
+    "scikit-build-core[pyproject]<0.6.0",
+    "swig",
+    "numpy==1.19.2; python_version == '3.8'",
+    "numpy==1.19.5; python_version == '3.9'",
+    "numpy==1.21.6; python_version == '3.10'",
+    "numpy==1.23.5; python_version == '3.11'",
 ]
 build-backend = "scikit_build_core.build"
 
@@ -22,9 +22,7 @@ description = "XTGeo is a Python library for 3D grids, surfaces, wells, etc"
 readme = "README.md"
 requires-python = ">=3.8"
 license = { text = "LGPL-3.0" }
-authors = [
-    { name = "Equinor", email = "[email protected]" },
-]
+authors = [{ name = "Equinor", email = "[email protected]" }]
 keywords = ["grids", "surfaces", "wells", "cubes"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
@@ -49,6 +47,7 @@ dependencies = [
     "resfo>=4.0.0",
     "h5py>=3",
     "hdf5plugin>=2.3",
+    "joblib",
     "matplotlib>=3.3",
     "numpy>=1.19",
     "pandas>=1.1",