Elasticsearch HTTP client: log requests at debug level

[barkbay]

As mentioned in this comment we should log (at the debug level) all the requests to Elasticsearch.
We should take care to not log the body or any header as they may contain some credentials. The debug log should also contain the Elasticsearch cluster namespaced name as for the other logs (es_name).

[koneko096]

let me try

[barkbay]

@koneko096 Hi 👋 , let me know if you have any issue/question, we would like to have this one in the next release.
Thanks !