fix(drizzle)!: make radio and select column names to snake_case (#8439)

Fixes #8402 and
#8027

Before DB column names were camelCase:

![image](https://github.com/user-attachments/assets/d2965bcf-290a-4f86-9bf4-dfe7e8613934)

After this change, they are snake_case:
![Screenshot 2024-10-04
114226](https://github.com/user-attachments/assets/bbc8c20b-6745-4dd3-b0c8-56263a4e37b1)

#### Breaking SQLite / Postgres ⚠️  
If you had any select (not `hasMany: true`) or radio fields with the
name in camelCase, for example:
```ts
{
  name: 'selectReadOnly',
  type: 'select',
  admin: {
    readOnly: true,
  },
  options: [
    {
      label: 'Value One',
      value: 'one',
    },
    {
      label: 'Value Two',
      value: 'two',
    },
  ],
},
```
This previously was mapped to the db column name `"selectReadOnly"`. Now
it's `select_read_only`.
Generate a new migration to rename your columns.
```sh
pnpm payload migrate:create
```
Then select "rename column" for targeted columns and Drizzle will handle
the migration.

---------

Co-authored-by: Dan Ribbens <dan.ribbens@gmail.com>

Author: r1tsuu

packages/db-sqlite/src/schema/traverseFields.ts

@@ -329,7 +329,12 @@ export const traverseFields = ({
             }),
           )
         } else {
-          targetTable[fieldName] = withDefault(text(fieldName, { enum: options }), field)
+          targetTable[fieldName] = withDefault(
+            text(columnName, {
+              enum: options,
+            }),
+            field,
+          )
         }
         break
       }

packages/drizzle/src/postgres/schema/traverseFields.ts

@@ -349,7 +349,7 @@ export const traverseFields = ({
             }),
           )
         } else {
-          targetTable[fieldName] = withDefault(adapter.enums[enumName](fieldName), field)
+          targetTable[fieldName] = withDefault(adapter.enums[enumName](columnName), field)
         }
         break
       }