Fix replaceAll usage in font loader (vercel#42550)

This removes usage of `replaceAll` as it wasn't introduced [until
Node.js
v15](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replaceAll#browser_compatibility)
although we support v14 still.

x-ref:
https://dev.azure.com/nextjs/next.js/_build/results?buildId=43457&view=logs&jobId=8af7cf9c-43a1-584d-6f5c-57bad8880974

## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see `contributing.md`

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

Author: ijjk

packages/font/src/google/loader.ts

@@ -17,6 +17,18 @@ import {
 const cssCache = new Map<string, Promise<string>>()
 const fontCache = new Map<string, any>()
 
+// regexp is based on https://github.com/sindresorhus/escape-string-regexp
+const reHasRegExp = /[|\\{}()[\]^$+*?.-]/
+const reReplaceRegExp = /[|\\{}()[\]^$+*?.-]/g
+
+function escapeStringRegexp(str: string) {
+  // see also: https://github.com/lodash/lodash/blob/2da024c3b4f9947a48517639de7560457cd4ec6c/escapeRegExp.js#L23
+  if (reHasRegExp.test(str)) {
+    return str.replace(reReplaceRegExp, '\\$&')
+  }
+  return str
+}
+
 const downloadGoogleFonts: FontLoader = async ({
   functionName,
   data,
@@ -124,8 +136,8 @@ const downloadGoogleFonts: FontLoader = async ({
   // Replace @font-face sources with self-hosted files
   let updatedCssResponse = fontFaceDeclarations
   for (const { googleFontFileUrl, selfHostedFileUrl } of downloadedFiles) {
-    updatedCssResponse = updatedCssResponse.replaceAll(
-      googleFontFileUrl,
+    updatedCssResponse = updatedCssResponse.replace(
+      new RegExp(escapeStringRegexp(googleFontFileUrl), 'g'),
       selfHostedFileUrl
     )
   }