feat: update API specifications from internal repo (#122)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: deepgram-robot

openapi.yml

@@ -3956,6 +3956,7 @@ paths:
         - projects
         - billing
         - fields
+      x-fern-sdk-method-name: list
       security:
         - ApiKeyAuth: []
       operationId: manage.v1.projects.billing.fields.list