refactor(starter): upgrade to new version of gatsby

src/components/Sidebar/Author/Author.test.tsx

@@ -0,0 +1,14 @@
+import React from "react";
+import renderer from "react-test-renderer";
+
+import { Author } from "@/components/Sidebar/Author";
+import * as mocks from "@/mocks";
+
+describe("Author", () => {
+  const props = { isIndex: false, author: mocks.author };
+
+  it("renders correctly", () => {
+    const tree = renderer.create(<Author {...props} />).toJSON();
+    expect(tree).toMatchSnapshot();
+  });
+});