Allow connecting to ES with Cloud ID

[jedrazb]

Problem Description

According to official ES client docs: https://www.elastic.co/guide/en/elasticsearch/client/python-api/current/connecting.html#connect-ec

We recommend using a Cloud ID whenever possible because your client will be automatically configured for optimal use with Elastic Cloud including HTTPS and HTTP compression

Proposed Solution

Include cloud id option in our config.yml and pass it to the ES client

Alternatives

We could keep it as it is, but cloud id is an established way to connect to ES and we should also support it

Additional Context

See discussion: #2861 (comment)