Add support for configuring retry and timeout parameters in the Elasticsearch output.

Using the existing Elasticsearch output error and retry parameters as a guide, we should allow configuring the following parameters:

• The maximum number of retries before giving up on an event. See max_retries. Default to infinite_retry to match the behaviour of Filebeat.
• The retry backoff algorithm parameters. The Beats output exposes backoff.init and backoff.max.
• The HTTP timeout used for the Elasticsearch client. See timeout.
• The set of HTTP status codes that are considered retryable. This maps to the RetryOnStatus parameter in the go-elasticsearch client configuration.

These parameters must be mapped to the appropriate fields in the go-elasticsearch client configuration: https://pkg.go.dev/github.com/elastic/go-elasticsearch/v8#Config