Update copytree function to support Python 3.12 (#2672)

* Update `copytree` dependency

* Allow copying to an existing dir

* Make the copied plugin directory readable and writeable

kevm-pyk/src/kevm_pyk/kdist/plugin.py

@@ -1,8 +1,8 @@
 from __future__ import annotations
 
 import shutil
+import subprocess
 import sys
-from distutils.dir_util import copy_tree
 from typing import TYPE_CHECKING
 
 from pyk.kbuild.utils import k_version
@@ -52,7 +52,9 @@ def context(self) -> dict[str, str]:
 
 class PluginTarget(Target):
     def build(self, output_dir: Path, deps: dict[str, Any], args: dict[str, Any], verbose: bool) -> None:
-        copy_tree(str(config.PLUGIN_DIR), '.')
+        shutil.copytree(str(config.PLUGIN_DIR), '.', dirs_exist_ok=True)
+        # Making the plugin directory readable and writable for nix
+        subprocess.run(['chmod', '-R', 'u+rw', '.'], check=True)
         run_process_2(['make', '-j8'])
         shutil.copy('./build/krypto/lib/krypto.a', str(output_dir))