fix(deepcopy): TypeError related to pickling '_thread.RLock' objects

[PeriniM]

Related to #374

Implements a custom deep copy function in SmartScraperMultiGraph to handle non-picklable objects and prevent TypeError during object copying.

• Custom Deep Copy Function: Introduces a custom deep copy function within the __init__ method of SmartScraperMultiGraph. This function is designed to safely copy configurations, including handling of non-picklable objects like _thread.RLock, which resolves the issue of TypeError when attempting to pickle such objects.
• Configuration Copying: Utilizes the custom deep copy function to copy the config dictionary passed to SmartScraperMultiGraph. This ensures that the configurations for AzureChatOpenAI and AzureOpenAIEmbeddings instances are copied without raising exceptions related to pickling.

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[shishirkmr]

We might need the same fixes in SearchGraph as well.

scrapegraphai/graphs/search_graph.py

I am getting the same error in SearchGraph .
TypeError: cannot pickle '_thread.RLock' object