Testing: Added PHP8.3 support

Also fixed text which could through deprecation notice due to not having
a properly formed comment in use.
For #4633

Author: ssddanbrown

.github/workflows/test-migrations.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        php: ['8.0', '8.1', '8.2']
+        php: ['8.0', '8.1', '8.2', '8.3']
     steps:
       - uses: actions/checkout@v1
 

.github/workflows/test-php.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        php: ['8.0', '8.1', '8.2']
+        php: ['8.0', '8.1', '8.2', '8.3']
     steps:
     - uses: actions/checkout@v1
 

tests/Activity/WatchTest.php

@@ -336,7 +336,10 @@ public function test_notifications_sent_in_right_language()
         $activities = [
             ActivityType::PAGE_CREATE => $entities['page'],
             ActivityType::PAGE_UPDATE => $entities['page'],
-            ActivityType::COMMENT_CREATE => (new Comment([]))->forceFill(['entity_id' => $entities['page']->id, 'entity_type' => $entities['page']->getMorphClass()]),
+            ActivityType::COMMENT_CREATE => Comment::factory()->make([
+                'entity_id' => $entities['page']->id,
+                'entity_type' => $entities['page']->getMorphClass(),
+            ]),
         ];
 
         $notifications = Notification::fake();