Fixes https://github.com/payloadcms/payload/issues/8752
Previously, trying to define a config like this:
```ts
{
type: 'text',
name: 'someText',
index: true,
},
{
type: 'array',
name: 'some',
index: true,
fields: [
{
type: 'text',
name: 'text',
index: true,
},
],
}
```
Lead to the error:
```
Warning We've found duplicated index name across public schema. Please rename your index in either the demonstration table or the table with the duplicated index name
```
Now, if we encounter duplicates, we increment the name like this:
`collection_some_text_idx`
`collection_some_text_1_idx`
---------
Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>
90bca15f52