refactor: replace interface{} with any (Go 1.18+)

[MD-Mushfiqur123]

No description provided.

[prodsecmachine]

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[github-actions]

🤖 Generated Code Modified

This PR modifies 12 generated file(s):

• esapi/api.count.go
• esapi/api.delete_by_query.go
• esapi/api.reindex.go
• esapi/api.search.go
• esapi/api.search_mvt.go
• esapi/api.snapshot.repository_analyze.go
• esapi/api.update_by_query.go
• esapi/api.xpack.async_search.submit.go
• esapi/api.xpack.ml.get_buckets.go
• esapi/api.xpack.ml.get_influencers.go
• esapi/api.xpack.ml.get_overall_buckets.go
• esapi/api.xpack.ml.get_records.go

What should I do?

Generated files are typically auto-generated and manual edits may be lost on regeneration.

Options:

• ✅ Add the skip: gencheck label if these changes are intentional
• 💬 Open an issue to discuss if you're unsure

This check can be bypassed by adding the skip label to PR #1505

[MD-Mushfiqur123]

The generated file changes are intentional — this is a mechanical interface{} → any refactor across the entire codebase, including generated API files. Could a maintainer add the skip: gencheck label to bypass this check?