feat(entrypoints): add command to list entrypoints

[maksadbek]

Add entrypoints:list command to get all entrypoints of project:

bright-cli entrypoints:list --project <project-id>

Output:
A list of all entry points for the specified project.

Benefits:

• Streamlines the process of retrieving project entry points directly from the CLI.
• Enhances integration with CI/CD pipelines.
• Aligns bright-cli capabilities with our existing API features.

Example:

$ bright-cli entrypoints:list --token <api-key> --project <project-id>
[ { "id": "s7vJhe2nmwJZXr1dpxbUmg", "url": "https://brightsec.com" } ]

[derevnjuk]

@maksadbek oh, I missed that while review. We should cover the new features with tests. e.g, RestEntryPoints by unit tests, and the command by e2e. Please write these tests in a separate PR once you have time.