feat: add search_people tool with 1st degree connection support

[danmunz]

This PR adds a new search_people tool to the LinkedIn MCP server.

Features:

• People Search: New search_people tool to find LinkedIn profiles based on keywords.
• Network Filtering: Supports an only_first_degree boolean parameter to limit search results to 1st-degree connections (your direct network).
• Structured Output: Returns names and profile URLs for easy follow-up with the get_person_profile tool.

Implementation Details:

• Added PersonSearchScraper class inheriting from BaseScraper.
• Implemented LinkedIn-specific URL building for people search with the network=["F"] parameter for 1st-degree filtering.
• Integrated the tool into the existing register_person_tools framework.

[greptile-apps]

Your free trial has ended. If you'd like to continue receiving code reviews, you can add a payment method here.

[greptile-apps]

Your free trial has ended. If you'd like to continue receiving code reviews, you can add a payment method here.

[stickerdaniel]

Hey, I just released a new version that inlines the scraping code and removes the linkedin_scraper dependency. Would love to merge this feature!