updated tests to use deleted_at instead of deleted

tests/Aauth/Libraries/Aauth/PermTest.php

@@ -126,7 +126,7 @@ class PermTest extends CIDatabaseTestCase
 		$this->dontSeeInDatabase($this->config->dbTablePerms, [
 			'name'       => 'testPerm1',
 			'definition' => 'Test Perm 1',
-			'deleted'    => 0,
+			'deleted_at' => null,
 		]);
 
 		$this->library = new Aauth(null, null);

tests/Aauth/Libraries/Aauth/UserTest.php

@@ -149,9 +149,9 @@ class UserTest extends CIDatabaseTestCase
 
 	public function testDeleteUser()
 	{
-		$this->seeNumRecords(2, $this->config->dbTableUsers, ['deleted' => 0]);
+		$this->seeNumRecords(2, $this->config->dbTableUsers, ['deleted_at' => null]);
 		$this->library->deleteUser(2);
-		$this->seeNumRecords(1, $this->config->dbTableUsers, ['deleted' => 0]);
+		$this->seeNumRecords(1, $this->config->dbTableUsers, ['deleted_at' => null]);
 
 		$this->assertFalse($this->library->deleteUser(99));
 		$this->assertEquals(lang('Aauth.notFoundUser'), $this->library->getErrorsArray()[0]);