[Data Usage] Excludes ca setting from TLS config for AutoOps API request (elastic#200073)

This PR is a result of the discussion we had about certificates check
performed between Kibana and AutoOps API

Author: YulNaumenko

x-pack/plugins/data_usage/server/services/autoops_api.ts

@@ -63,7 +63,6 @@ export class AutoOpsAPIService {
         rejectUnauthorized: tlsConfig.rejectUnauthorized,
         cert: tlsConfig.certificate,
         key: tlsConfig.key,
-        ca: tlsConfig.certificateAuthorities,
       }),
     };