feat: enables remote custom analyzers

[AlexsJones]

📑 Description

This PR allows you to define a remote/local unauthenticated analyzer to scrape data from to add to K8sGPT. This allows the development of custom analyzers in any language, that conform to the K8sGPT analyzer service schema ( https://github.com/k8sgpt-ai/schemas)

✅ Checks

• [ x] My pull request adheres to the code style of this project
• [x ] My code requires changes to the documentation
• [ x] I have updated the documentation as required
• [x ] All the tests have passed

ℹ Additional Information