Changes to Public GPU inventory and pricing feed

added the new optional query request parameter include_rented

added the non-success response with the status 422

added the optional property nodes/items/available_now to the response with the 200 status

added the optional property nodes/items/cuda_driver to the response with the 200 status

added the optional property nodes/items/disk_free_gb to the response with the 200 status

added the optional property nodes/items/gpu_driver to the response with the 200 status

added the optional property nodes/items/gpu_interconnect to the response with the 200 status

added the optional property nodes/items/region_name to the response with the 200 status

added the optional property nodes/items/timezone to the response with the 200 status

added the optional property nodes/items/disk_type to the response with the 200 status

added the optional property nodes/items/cpu_model to the response with the 200 status

added the optional property nodes/items/network_download_mbps to the response with the 200 status

added the optional property nodes/items/network_upload_mbps to the response with the 200 status

added the optional property nodes/items/reliability_score to the response with the 200 status

added the optional property nodes/items/uptime_minutes to the response with the 200 status