Continuation of https://github.com/payloadcms/payload/pull/12185 and fix
https://github.com/payloadcms/payload/issues/12221
The mentioned PR introduced auto sorting by the point field when a
`near` query is used, but it didn't build actual needed query to order
results by their distance to a _given_ (from the `near` query) point.
Now, we build:
```sql
order by pont_field <-> ST_SetSRID(ST_MakePoint(lng, lat), 4326)
```
Which does what we want
58fc2f9a74