Merge pull request matplotlib#20369 from QuLogic/setuptools-semver

Switch version scheme to release-branch-semver.

setup.py

@@ -336,7 +336,7 @@ def make_release_tree(self, base_dir, files):
         else []
     ),
     use_scm_version={
-        "version_scheme": "post-release",
+        "version_scheme": "release-branch-semver",
         "local_scheme": "node-and-date",
         "write_to": "lib/matplotlib/_version.py",
         "parentdir_prefix_version": "matplotlib-",