PhpUnit: fixes Update LayoutTest.php (OpenMage#4453)

Author: sreichel

.github/labeler.yml

@@ -868,8 +868,8 @@
 'Documentation':
   - changed-files:
     - any-glob-to-any-file: [
-      docs/*.md
-      docs/**/*.md
+      docs/*.md,
+      docs/**/*.md,
       docs_includes/*.md
     ]
 

tests/unit/Mage/Core/Model/LayoutTest.php

@@ -125,7 +125,11 @@ public function provideGetBlockSingleton(): Generator
     public function testGetBlockSingletonError(): void
     {
         $this->expectException(\Error::class);
-        $this->expectExceptionMessage("Class 'Mage_Invalid_Block_Type' not found");
+        if (PHP_VERSION_ID >= 80000) {
+            $this->expectExceptionMessage('Class "Mage_Invalid_Block_Type" not found');
+        } else {
+            $this->expectExceptionMessage("Class 'Mage_Invalid_Block_Type' not found");
+        }
 
         $this->subject->getBlockSingleton('invalid/type');
     }