fix(drizzle): skip column if undefined in findMany (#12902)

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### What?

### Why?

### How?

Fixes #

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### What?
This PR fixes an issue where sorting on a traditional virtual field with
`virtual: true` while using a drizzle-based db adapter would cause a
runtime error.

### Why?
To skip attempting to sort virtual fields which are not linked to a
relationship/upload and prevent a runtime error from surfacing.

### How?
Skipping the deletion of the property from the `selectFields` object if
the column is false-y.

Fixes #12886

Before:


[sort-virtualfield-drizzle-error.mp4](https://private-user-images.githubusercontent.com/78685728/457602747-b8661e47-a1a8-4453-b2ec-b7e7199b9846.mp4?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.N1GJsiI_gZ8M54VHCAmiPEhcJGqRw3Ucy-VeM5R7UFE)

After: 


[virtualfields-sort-Posts---Payload.webm](https://github.com/user-attachments/assets/f5a15d98-4a40-4817-bc6a-415f3ec27484)

<details>

<summary>Collection config used above</summary>

```ts
export const PostsCollection: CollectionConfig = {
  slug: postsSlug,
  admin: {
    useAsTitle: 'title',
    defaultColumns: ['title', 'exampleField'],
  },
  fields: [
    {
      name: 'title',
      type: 'text',
    },
    {
      name: 'exampleField',
      type: 'text',
      virtual: true,
      admin: {
        readOnly: true,
      },
      hooks: {
        afterRead: [({ data }) => data?.title],
      },
    },
    {
      type: 'relationship',
      name: 'category',
      relationTo: 'categories',
    },
    {
      name: 'categoryTitle',
      type: 'text',
      virtual: 'category.title',
    },
  ],
}
```

</details>

---------

Co-authored-by: Sasha <64744993+r1tsuu@users.noreply.github.com>

test/database/int.spec.ts

@@ -32,7 +32,7 @@ import { initPayloadInt } from '../helpers/initPayloadInt.js'
 import { isMongoose } from '../helpers/isMongoose.js'
 import removeFiles from '../helpers/removeFiles.js'
 import { seed } from './seed.js'
-import { errorOnUnnamedFieldsSlug, postsSlug } from './shared.js'
+import { errorOnUnnamedFieldsSlug, fieldsPersistanceSlug, postsSlug } from './shared.js'
 
 const filename = fileURLToPath(import.meta.url)
 const dirname = path.dirname(filename)
@@ -2325,6 +2325,19 @@ describe('database', () => {
       expect(localAsc[1].id).toBe(doc_2.id)
       expect(localAsc[0].id).toBe(doc_1.id)
     })
+
+    it('should allow to sort by a virtual field without error', async () => {
+      await payload.delete({ collection: fieldsPersistanceSlug, where: {} })
+      await payload.create({
+        collection: fieldsPersistanceSlug,
+        data: {},
+      })
+      const { docs } = await payload.find({
+        collection: fieldsPersistanceSlug,
+        sort: '-textHooked',
+      })
+      expect(docs).toHaveLength(1)
+    })
   })
 
   it('should convert numbers to text', async () => {