fix(expect-puppeteer): fix addSnapshotSerializer usage

Closes #552

Author: gregberge

packages/expect-puppeteer/src/__snapshots__/index.test.ts.snap

@@ -0,0 +1,3 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`expect-puppeteer should works with \`addSnapshotSerializer\` 1`] = `hello`;

packages/expect-puppeteer/src/index.test.ts

@@ -1,5 +1,11 @@
 import { getDefaultOptions, setDefaultOptions } from ".";
 
+expect.addSnapshotSerializer({
+  print: () => "hello",
+  test: () => true,
+  serialize: () => "hello",
+});
+
 describe("expect-puppeteer", () => {
   beforeEach(async () => {
     await page.goto(`http://localhost:${process.env.TEST_SERVER_PORT}`);
@@ -16,6 +22,10 @@ describe("expect-puppeteer", () => {
     expect(200).toBe(200);
   });
 
+  it("should works with `addSnapshotSerializer`", () => {
+    expect({ hello: "world" }).toMatchSnapshot();
+  });
+
   it("should get and set default options", () => {
     expect(getDefaultOptions()).toEqual({ timeout: 500 });
     setDefaultOptions({ timeout: 200 });

packages/expect-puppeteer/src/index.ts

@@ -6,7 +6,7 @@ import {
   checkIsPage,
   PuppeteerInstance,
 } from "./utils";
-import { jestExpect, JestExpect } from "@jest/expect";
+import type { JestExpect } from "@jest/expect";
 import { notToMatchTextContent } from "./matchers/notToMatchTextContent";
 import { notToMatchElement } from "./matchers/notToMatchElement";
 import { toClick } from "./matchers/toClick";
@@ -95,6 +95,9 @@ export type PuppeteerMatchers =
   | MatchersFromSet<PageMatchers>
   | MatchersFromSet<ElementHandleMatchers>;
 
+// @ts-ignore
+const jestExpect = global.expect as JestExpect;
+
 const wrapMatcher = <TPage extends PuppeteerInstance>(
   matcher: Matcher<TPage>,
   instance: PuppeteerInstance