🚀 feat(settings.py): add cache configuration option

The cache configuration option has been added to the settings file with a default value of "InMemoryCache". This allows the user to choose the cache implementation they want to use.

src/backend/langflow/settings.py

@@ -21,6 +21,7 @@ class Settings(BaseSettings):
     utilities: List[str] = []
     dev: bool = False
     database_url: str = "sqlite:///./langflow.db"
+    cache: str = "InMemoryCache"
     remove_api_keys: bool = False
 
     class Config: