Fixed build issue with Python 3.12

ChangeLog.txt

@@ -11,6 +11,7 @@ Version 0.12.0 (unreleased)
 Version 0.11.4 (unreleased)
 ---------------
 * Fixed build issue with GCC 13 (see https://github.com/cryfs/cryfs/pull/448 )
+* Fixed build issue with Python 3.12 (see https://github.com/cryfs/cryfs/issues/459 )
 
 Version 0.11.3
 ---------------

src/gitversion/versioneer.py

@@ -406,9 +406,9 @@ 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):