[8.x] [Ingest pipelines] Change copy text from copy to field in Set p…

…rocessor (#205471) (#205495)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Ingest pipelines] Change copy text from copy to field in Set
processor (#205471)](#205471)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Sonia Sanz
Vivas","email":"[email protected]"},"sourceCommit":{"committedDate":"2025-01-03T14:25:19Z","message":"[Ingest
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(#205471)\n\nPart of
https://github.com/elastic/kibana/issues/193186\n\n## Summary\nI got
some copy change request from docs team after submitting
this\n[PR](#204336) and I forgot
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pipelines] Change copy text from copy to field in Set processor
(#205471)\n\nPart of
https://github.com/elastic/kibana/issues/193186\n\n## Summary\nI got
some copy change request from docs team after submitting
this\n[PR](#204336) and I forgot
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pipelines] Change copy text from copy to field in Set processor
(#205471)\n\nPart of
https://github.com/elastic/kibana/issues/193186\n\n## Summary\nI got
some copy change request from docs team after submitting
this\n[PR](#204336) and I forgot
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BACKPORT-->

Co-authored-by: Sonia Sanz Vivas <[email protected]>

x-pack/platform/plugins/shared/ingest_pipelines/public/application/components/pipeline_editor/components/processor_form/processors/set.tsx

@@ -176,7 +176,7 @@ const fieldsConfig: FieldsConfig = {
     helpText: (
       <FormattedMessage
         id="xpack.ingestPipelines.pipelineEditor.setForm.enablingCopydHelpText"
-        defaultMessage="Define fields to copy into {field} insted of defining {value}."
+        defaultMessage="Specify fields to copy into {field} instead of setting a {value}."
         values={{
           field: <EuiCode>{'Field'}</EuiCode>,
           value: <EuiCode>{'Value'}</EuiCode>,