Automated Project Update Bot fixes from run 11-137198.

tests/src/Kernel/CircularEntityReferenceTest.php

@@ -23,7 +23,7 @@ class CircularEntityReferenceTest extends FieldKernelTestBase {
    *
    * @var array
    */
-  public static $modules = ['entity_reference_validators'];
+  protected static $modules = ['entity_reference_validators'];
 
   /**
    * Tests circular references.

tests/src/Kernel/DuplicateEntityReferenceTest.php

@@ -30,7 +30,7 @@ class DuplicateEntityReferenceTest extends FieldKernelTestBase {
    *
    * @var array
    */
-  public static $modules = ['entity_reference_validators'];
+  protected static $modules = ['entity_reference_validators'];
 
   /**
    * Sets up the test.