v1.16-4.10/outputs Update dependency fluent-plugin-elasticsearch to v5.4.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
fluent-plugin-elasticsearch (changelog)	'5.4.3' -> '5.4.4'

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Release Notes

uken/fluent-plugin-elasticsearch (fluent-plugin-elasticsearch)

v5.4.4

Compare Source

• docs: Clarify README docs for template_name and templates (#​1043)
• out_elasticsearch_data_stream: Avoid long worrying log line at info level (#​1044)
• out_elasticsearch_data_stream: Support id_key and remove_keys (#​1057)
• out_elasticsearch: Fix memory leaks when exception was raised frequently (#​1065)

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