perf(escapeStringRegexp): test before replace (vercel#34472)

## Bug

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

## Documentation / Examples

- [x] Make sure the linting passes by running `yarn lint`

packages/next/shared/lib/escape-regexp.ts

@@ -1,4 +1,11 @@
-// regexp from https://github.com/sindresorhus/escape-string-regexp
+// regexp is based on https://github.com/sindresorhus/escape-string-regexp
+const reHasRegExp = /[|\\{}()[\]^$+*?.-]/
+const reReplaceRegExp = /[|\\{}()[\]^$+*?.-]/g
+
 export function escapeStringRegexp(str: string) {
-  return str.replace(/[|\\{}()[\]^$+*?.-]/g, '\\$&')
+  // see also: https://github.com/lodash/lodash/blob/2da024c3b4f9947a48517639de7560457cd4ec6c/escapeRegExp.js#L23
+  if (reHasRegExp.test(str)) {
+    return str.replace(reReplaceRegExp, '\\$&')
+  }
+  return str
 }