Cache the result of loading pyproject.toml file

This change adds the functools cache decorator to avoid repeated
calls to _get_package_config, which results in IO hits to read
a file.

Closes reflex-dev#3341

Signed-off-by: Eric Brown <eric_wade_brown@yahoo.com>

reflex/custom_components/custom_components.py

@@ -8,6 +8,7 @@
 import sys
 from collections import namedtuple
 from contextlib import contextmanager
+from functools import lru_cache
 from pathlib import Path
 from typing import Optional, Tuple
 
@@ -70,6 +71,7 @@ def _create_package_config(module_name: str, package_name: str):
         )
 
 
+@lru_cache(maxsize=None)
 def _get_package_config(exit_on_fail: bool = True) -> dict:
     """Get the package configuration from the pyproject.toml file.