fix(ui): updatedAt field in locked-docs collection able to be updated by non-owner (#9026)

### What?

If you have a custom field that sets the value of the field using the
`useField` hook on entry into a document - the `updatedAt` field would
be updated even when a non-owner tries to enter a locked document.

### Why?

When a field is updated in the edit view - we perform an update in
`form-state` to keep the doc in `payload-locked-documents` up to date
with the current editing status. The above scenario would hit this
update operation even on non-owner users because it was previously only
checking for `updateLastEdited` (which would get hit by the `setValue`
in the `useField` hook) so we also need to check to make sure the
current user entering a locked doc is also the owner of the document.

### How?

When performing an update to `payload-locked-documents` in
`buildFormState` - only perform the update if the current user is also
the owner of the locked document otherwise skip the `update` operation.

Fixes #8781

test/locked-documents/collections/Posts/fields/DocumentLoaded.tsx

@@ -0,0 +1,32 @@
+'use client'
+import type { TextFieldClientProps } from 'payload'
+
+import { DatePicker, FieldLabel, useField } from '@payloadcms/ui'
+import { type FunctionComponent, useEffect, useRef } from 'react'
+
+export const DocumentLoaded: FunctionComponent<TextFieldClientProps> = ({ field: label }) => {
+  const field = useField<Date>({
+    path: 'documentLoaded',
+  })
+  const hasRun = useRef(false)
+
+  useEffect(() => {
+    if (hasRun.current || field.formInitializing) {
+      return
+    }
+    hasRun.current = true
+
+    field.setValue(new Date().toISOString())
+  }, [field])
+
+  return (
+    <div
+      style={{
+        marginBottom: '20px',
+      }}
+    >
+      <FieldLabel field={label} />
+      <DatePicker displayFormat="yyyy-MM-dd hh:mm:ss" readOnly={true} value={field.value} />
+    </div>
+  )
+}

test/locked-documents/collections/Posts/index.ts

@@ -6,6 +6,7 @@ export const PostsCollection: CollectionConfig = {
   slug: postsSlug,
   admin: {
     useAsTitle: 'text',
+    defaultColumns: ['text', 'createdAt', 'updatedAt', '_status'],
   },
   lockDocuments: {
     duration: 180,
@@ -15,6 +16,20 @@ export const PostsCollection: CollectionConfig = {
       name: 'text',
       type: 'text',
     },
+    {
+      name: 'documentLoaded',
+      label: 'Document loaded',
+      type: 'date',
+      admin: {
+        date: {
+          displayFormat: 'yyyy-MM-dd HH:mm:ss',
+        },
+        readOnly: true,
+        components: {
+          Field: '/collections/Posts/fields/DocumentLoaded.tsx#DocumentLoaded',
+        },
+      },
+    },
   ],
   versions: {
     drafts: true,