Fixing toml warning

Author: henricasanova

pyproject.toml

@@ -9,7 +9,7 @@ description = "A Framework for Enabling Scientific Workflow Research and Educati
 readme = "README.md"
 requires-python = ">=3.9"
 classifiers = [
-    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+    "License :: OSI Approved :: GPL-3.0-or-later",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -21,7 +21,7 @@ classifiers = [
     "Topic :: Documentation :: Sphinx",
     "Topic :: System :: Distributed Computing"
 ]
-license = {text = "GNU General Public License v3 (GPLv3)"}
+license = {text = "GPL-3.0-or-later"}
 dependencies = [
     "jsonschema",
     "matplotlib",

setup.cfg

@@ -1,2 +1,2 @@
 [metadata]
-description-file = README.md
+description_file = README.md