Update openapi to resolve to api.rekor.dev (#110)

openapi.yaml

@@ -4,9 +4,10 @@ info:
   description: Rekor is a cryptographically secure, immutable transparency log for signed software releases.
   version: 0.0.1
 
-host: 104.198.250.40
+host: api.rekor.dev
 schemes:
   - http
+  - https
 
 consumes:
   - application/json