fix regex pattern in test

Author: LordSimal

tests/TestCase/ToolbarServiceTest.php

@@ -260,7 +260,7 @@ public function testSaveData()
         $this->assertSame('Timer', $result->panels[11]->panel);
         $this->assertSame('DebugKit.timer_panel', $result->panels[11]->element);
         $this->assertMatchesRegularExpression(
-            '/\d+\.\d+\s[ms]+\s+\/\s+\d+\.\d+\s+[mbMB]+/',
+            '/\d+\.\d+\s[ms]+\s+\/\s+\d+\.?\d+\s+[mbMB]+/',
             $result->panels[11]->summary
         );
         $this->assertSame('Timer', $result->panels[11]->title);