pyproject.toml: use dynamic version with setuptools-scm

Author: fhs

pyproject.toml

@@ -1,13 +1,14 @@
 [build-system]
 requires = [
 	"setuptools",
+	"setuptools-scm",
 	"numpy",
 ]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyhdf"
-version = "0.11.4"
+dynamic = ["version"]
 description = "Python interface to the NCSA HDF4 library"
 readme = "README.md"
 keywords = ['hdf4', 'netcdf', 'numpy', 'python', 'pyhdf']
@@ -40,3 +41,5 @@ dependencies = [
 
 [project.urls]
 Homepage = 'https://github.com/fhs/pyhdf'
+
+[tool.setuptools_scm]