Update module github.com/elastic/go-docappender/v2 to v2.2.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
github.com/elastic/go-docappender/v2	v2.2.0 -> v2.2.1

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Release Notes

elastic/go-docappender (github.com/elastic/go-docappender/v2)

v2.2.1

Compare Source

What's Changed

• build(deps): bump the otel group with 5 updates by @​dependabot in https://github.com/elastic/go-docappender/pull/186
• ci: add integrationtest to dependabot by @​kruskall in https://github.com/elastic/go-docappender/pull/187
• build(deps): bump github.com/elastic/go-elasticsearch/v8 from 8.13.1 to 8.14.0 in /integrationtest by @​dependabot in https://github.com/elastic/go-docappender/pull/188
• bulk_indexer: Remove ES field mapper field preview by @​kruskall in https://github.com/elastic/go-docappender/pull/190

Full Changelog: elastic/go-docappender@v2.2.0...v2.2.1

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