Search worker with dria-searching-agent

[selimseker]

This pr introduces a search_python task for using https://github.com/firstbatchxyz/dria-searching-agent with http requests.

• search worker added to src/workers/search_python.rs
• Base http client moved from src/waku/base.rs to src/utils/http.rs
• Dria-search-agent and its dependencies added to docker-compose with search-python profile

[erhant]

Closing for https://github.com/firstbatchxyz/dkn-compute-node/pull/28