fix: Add import to internal tooltip

Author: Who-is-PS

src/internal/components/tooltip/index.tsx

@@ -10,6 +10,7 @@ import PopoverContainer from '../../../popover/container';
 import { PopoverProps } from '../../../popover/interfaces';
 import { Transition } from '../transition';
 
+import testUtilsStyles from '../../../tooltip/test-classes/styles.css.js';
 import styles from './styles.css.js';
 
 export interface TooltipProps {
@@ -65,7 +66,7 @@ export default function Tooltip({
 
   return (
     <Portal>
-      <div className={styles.root} {...contentAttributes} data-testid={trackKey}>
+      <div className={`${styles.root} ${testUtilsStyles.root}`} {...contentAttributes} data-testid={trackKey}>
         <Transition in={true}>
           {() => (
             <PopoverContainer