Update run.md (#4061)

## What are you changing in this pull request and why?
The link in the **Treat warnings as errors** section redirects to the
wrong article (**failing-fast**). This small change fixes that.

## Checklist
<!--
Uncomment if you're publishing docs for a prerelease version of dbt
(delete if not applicable):
- [ ] Add versioning components, as described in [Versioning
Docs](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#versioning-entire-pages)
- [ ] Add a note to the prerelease version [Migration
Guide](https://github.com/dbt-labs/docs.getdbt.com/tree/current/website/docs/guides/migration/versions)
-->
- [x] Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
and [About
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
so my content adheres to these guidelines.
- [ ] Add a checklist item for anything that needs to happen before this
PR is merged, such as "needs technical review" or "change base branch."

website/docs/reference/commands/run.md

@@ -77,7 +77,7 @@ For more information on running parents or children of specific models, see the
 
 </Changelog>
 
-See [global configs](/reference/global-configs/failing-fast)
+See [global configs](/reference/global-configs/warnings)
 
 ## Failing fast