fix(db-postgres): querying on array wtihin a relationship field (#8152)

## Description

Fixes https://github.com/payloadcms/payload/issues/6037

- [x] I have read and understand the
[CONTRIBUTING.md](https://github.com/payloadcms/payload/blob/main/CONTRIBUTING.md)
document in this repository.

## Type of change

<!-- Please delete options that are not relevant. -->

- [x] Bug fix (non-breaking change which fixes an issue)

## Checklist:

- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] Existing test suite passes locally with my changes

test/_community/payload-types.ts

@@ -54,8 +54,8 @@ export interface UserAuthOperations {
  */
 export interface Post {
   id: string;
-  customClientField?: string | null;
-  customServerField?: string | null;
+  text?: string | null;
+  serverTextField?: string | null;
   richText?: {
     root: {
       type: string;