Elasticsearch 7.X - Deprecated "types" in document.

[DandyDeveloper]

Describe the bug
Deprecated types is present in documents managed by latest fluentd version (Possibly the fluentd_elasticsearch plugin):

Same issue described here in fluentbit: fluent/fluent-bit#1359

To Reproduce
Forward a document via the elasticsearch output plugin on any 7.X instance.

Expected behavior
No warning messages from Elasticsearch

Your Environment

• Fluentd image: fluent/fluentd:v1.11-1
• Plugin via gem install: https://github.com/uken/fluent-plugin-elasticsearch

Your Error Log

warning: 299 Elasticsearch-7.8.0-757314695644ea9a1dc2fecd26d1a43856725e65 "[types removal] Specifying types in bulk requests is deprecated."
warning: 299 Elasticsearch-7.8.0-757314695644ea9a1dc2fecd26d1a43856725e65 "[types removal] Specifying types in bulk requests is deprecated."
warning: 299 Elasticsearch-7.8.0-757314695644ea9a1dc2fecd26d1a43856725e65 "[types removal] Specifying types in bulk requests is deprecated."

[repeatedly]

This seems fluent-plugin-elasticsearch issue, not fluentd core.