⬆️ Bump es6-promise from 4.2.5 to 4.2.8

Bumps [es6-promise](https://github.com/stefanpenner/es6-promise) from 4.2.5 to 4.2.8.
- [Release notes](https://github.com/stefanpenner/es6-promise/releases)
- [Changelog](https://github.com/stefanpenner/es6-promise/blob/master/CHANGELOG.md)
- [Commits](stefanpenner/es6-promise@v4.2.5...v4.2.8)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

yarn.lock

@@ -1041,9 +1041,9 @@ error-ex@^1.3.1:
     is-arrayish "^0.2.1"
 
 es6-promise@~4.2.4:
-  version "4.2.5"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.5.tgz#da6d0d5692efb461e082c14817fe2427d8f5d054"
-  integrity sha512-n6wvpdE43VFtJq+lUDYDBFUwV8TZbuGXLV4D6wKafg13ldznKsyEvatubnmUe31zcvelSzOHF+XbaT+Bl9ObDg==
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
+  integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
 
 escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.4, escape-string-regexp@^1.0.5:
   version "1.0.5"