Replace httpie with httpx

[chrisbbreuer]

Clear and concise description of the problem

No need for httpie when we can use our own httpx client

Suggested solution

• replace httpie with httpx

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guide
• Check that there isn't already an issue that requests the same feature (to avoid creating a duplicate)