fix(server): remove act around server renderer to fix support for older versions of react

* refactor(server/pure): remove unnecessary type annotation

* feat: add ssr.test.ts

This adds a new test to verify that renderHook can be called in an
SSR-like environment based on the changes implemented in #607.

* chore: update contributors table

* refactor: remove act call in render in sever/pure

@mpeyper explained how this `act` call in server rendering is not really
necessary so we can remove it.

Author: jsjoeio

.all-contributorsrc

@@ -145,7 +145,8 @@
       "avatar_url": "https://avatars3.githubusercontent.com/u/3806031?v=4",
       "profile": "https://jsjoe.io",
       "contributions": [
-        "tutorial"
+        "tutorial",
+        "test"
       ]
     },
     {

README.md

@@ -198,7 +198,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/VinceMalone"><img src="https://avatars0.githubusercontent.com/u/2516349?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Vince Malone</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=VinceMalone" title="Code">💻</a></td>
     <td align="center"><a href="https://github.com/doppelmutzi"><img src="https://avatars1.githubusercontent.com/u/4130968?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sebastian Weber</b></sub></a><br /><a href="#blog-doppelmutzi" title="Blogposts">📝</a></td>
     <td align="center"><a href="https://gillchristian.xyz"><img src="https://avatars2.githubusercontent.com/u/8309423?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Christian Gill</b></sub></a><br /><a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=gillchristian" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://jsjoe.io"><img src="https://avatars3.githubusercontent.com/u/3806031?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JavaScript Joe</b></sub></a><br /><a href="#tutorial-jsjoeio" title="Tutorials">✅</a></td>
+    <td align="center"><a href="https://jsjoe.io"><img src="https://avatars3.githubusercontent.com/u/3806031?v=4?s=100" width="100px;" alt=""/><br /><sub><b>JavaScript Joe</b></sub></a><br /><a href="#tutorial-jsjoeio" title="Tutorials">✅</a> <a href="https://github.com/testing-library/react-hooks-testing-library/commits?author=jsjoeio" title="Tests">⚠️</a></td>
   </tr>
   <tr>
     <td align="center"><a href="http://frontstuff.io"><img src="https://avatars1.githubusercontent.com/u/5370675?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sarah Dayan</b></sub></a><br /><a href="#platform-sarahdayan" title="Packaging/porting to new platform">📦</a></td>

src/__tests__/ssr.test.ts

@@ -0,0 +1,18 @@
+/**
+ * @jest-environment node
+ */
+import { useState } from 'react'
+
+// This verifies that renderHook can be called in
+// a SSR-like environment.
+describe('renderHook', () => {
+  function useLoading() {
+    const [loading, setLoading] = useState(false)
+    return { loading, setLoading }
+  }
+  runForRenderers(['server'], ({ renderHook }) => {
+    test('should not throw in SSR environment', () => {
+      expect(() => renderHook(() => useLoading())).not.toThrowError('document is not defined')
+    })
+  })
+})

src/server/pure.ts

@@ -13,19 +13,17 @@ function createServerRenderer<TProps, TResult>(
 ) {
   let renderProps: TProps | undefined
   let container: HTMLDivElement | undefined
-  let serverOutput: string = ''
+  let serverOutput = ''
   const testHarness = createTestHarness(rendererProps, wrapper, false)
 
   return {
     render(props?: TProps) {
       renderProps = props
-      act(() => {
-        try {
-          serverOutput = ReactDOMServer.renderToString(testHarness(props))
-        } catch (e: unknown) {
-          rendererProps.setError(e as Error)
-        }
-      })
+      try {
+        serverOutput = ReactDOMServer.renderToString(testHarness(props))
+      } catch (e: unknown) {
+        rendererProps.setError(e as Error)
+      }
     },
     hydrate() {
       if (container) {