Changes to Fetch paid counterparty trust by pubkey

for the path request parameter pubkey, the minLength was increased from 0 to 32

added the pattern ^[1-9A-HJ-NP-Za-km-z]{32,44}$ to the path request parameter pubkey

for the path request parameter pubkey, the maxLength was set to 44

api operation id get_v1_intel_trust_pubkey was added

api tag Paid Trust Intel (Path A) added

added the new optional query request parameter seller_wallet

added the media type application/json for the response with the status 200

added the non-success response with the status 503

endpoint added