Improvement made : by automating search engine configuration in example search_in_search_engine.py

[Abhishek0075]

Features
This is a change made for improving new user's experience. When the examples are run there can be some confusion.
So when I went through the examples\search_with_specific_engine.py there is a need for adding the api key and cse id explicitly and also need to uncomment and comment the code snippets according to our search engine preference
Through my updation i have made it easy by just using the config2.yaml configuration and doing the run
The user just need to run the program no need to bother about the code changes according to configurations.

Influence
It can make the new users' experience great and ease the usage of examples and understanding the code

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.16%. Comparing base (e12dde9) to head (cbfbecb).
Report is 130 commits behind head on main.

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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #965      +/-   ##
==========================================
- Coverage   82.08%   81.16%   -0.93%     
==========================================
  Files         226      226              
  Lines       12477    12477              
==========================================
- Hits        10242    10127     -115     
- Misses       2235     2350     +115     

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[iorisa]

LGTM