Update where.md (#4793)

Update where_subquery macro github url, as the old URL is broken as of
2024-01-24

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website/docs/reference/resource-configs/where.md

@@ -122,7 +122,7 @@ tests:
 
 The rendering context for the `where` config is the same as for all configurations defined in `.yml` files. You have access to `{{ var() }}` and `{{ env_var() }}`, but you **do not** have access to custom macros for setting this config. If you do want to use custom macros to template out the `where` filter for certain tests, there is a workaround.
 
-As of v0.21, dbt defines a [`get_where_subquery` macro](https://github.com/dbt-labs/dbt-core/blob/main/core/dbt/adapters/include/global_project/macros/materializations/tests/where_subquery.sql).
+As of v0.21, dbt defines a [`get_where_subquery` macro](https://github.com/dbt-labs/dbt-adapters/blob/main/dbt/include/global_project/macros/materializations/tests/where_subquery.sql).
 
 dbt replaces `{{ model }}` in generic test definitions with `{{ get_where_subquery(relation) }}`, where `relation` is a `ref()` or `source()` for the resource being tested. The default implementation of this macro returns:
 - `{{ relation }}` when the `where` config is not defined (`ref()` or `source()`)