Fix linting

Author: andreaswilli

src/verification-input.test.js

@@ -66,7 +66,7 @@ describe("VerificationInput", () => {
 
     await userEvent.type(screen.getByLabelText("verification input"), "012345");
 
-    expect(screen.getByTestId("container")).toHaveTextContent(/^\!\!\!\!\!\!$/);
+    expect(screen.getByTestId("container")).toHaveTextContent(/^!!!!!!$/);
   });
 
   it("should not allow placeholder character", async () => {