Fix link (#4697)

## What are you changing in this pull request and why?

Fix link in step 3
(https://docs.getdbt.com/guides/custom-cicd-pipelines?step=3 ) of the
guide "Customizing CI/CD with custom pipelines guide".

It's pointing to itself when it should be pointing to step 2 of the
guide for the "prior page".

## Checklist
- [x] Review the [Content style
guide](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/content-style-guide.md)
so my content adheres to these guidelines.
- [x] For [docs
versioning](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#about-versioning),
review how to [version a whole
page](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#adding-a-new-version)
and [version a block of
content](https://github.com/dbt-labs/docs.getdbt.com/blob/current/contributing/single-sourcing-content.md#versioning-blocks-of-content).

website/docs/guides/custom-cicd-pipelines.md

@@ -511,7 +511,7 @@ This section is only for those projects that connect to their git repository usi
 
 :::
 
-The setup for this pipeline will use the same steps as the prior page. Before moving on, **follow steps 1-5 from the [prior page](https://docs.getdbt.com/guides/orchestration/custom-cicd-pipelines/3-dbt-cloud-job-on-merge)**
+The setup for this pipeline will use the same steps as the prior page. Before moving on, follow steps 1-5 from the [prior page](https://docs.getdbt.com/guides/custom-cicd-pipelines?step=2).
 
 ### 1. Create a pipeline job that runs when PRs are created