Use ConfigParser instead of SafeConfigParser (#208)

The SafeConfigParser class will be renamed to ConfigParser in Python
3.12 [1]. This alias will be removed in future versions.So we can use
ConfigParser directly instead.

[1] python/cpython#89336

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>

versioneer.py

@@ -339,9 +339,9 @@ def get_config_from_root(root):
     # configparser.NoOptionError (if it lacks "VCS="). See the docstring at
     # the top of versioneer.py for instructions on writing your setup.cfg .
     setup_cfg = os.path.join(root, "setup.cfg")
-    parser = configparser.SafeConfigParser()
+    parser = configparser.ConfigParser()
     with open(setup_cfg, "r") as f:
-        parser.readfp(f)
+        parser.read_file(f)
     VCS = parser.get("versioneer", "VCS")  # mandatory
 
     def get(parser, name):