docs: add bun as packager option to readme

This is now tested in our e2e tests as well, and seems to work nicely

README.md

@@ -49,7 +49,7 @@ Here is a summary of all the input options you can use.
 | **expo-cache**     | `true`  | If it should use the GitHub actions cache ([read more](#using-the-built-in-cache))            |
 | **eas-version**    | -       | EAS CLI version to install _(skips when omitted)_                                             |
 | **eas-cache**      | `true`  | If it should use the GitHub actions cache ([read more](#using-the-built-in-cache))            |
-| **packager**       | `yarn`  | Package manager to use _(e.g. `yarn` or `npm`)_                                               |
+| **packager**       | `yarn`  | Package manager to use _(e.g. `bun`, `yarn`, or `npm`)_                                               |
 | **token**          | -       | Token of your Expo account - [get your token][link-expo-token] _(use with [secrets][link-actions-secrets])_                  |
 | **patch-watchers** | `true`  | If it should patch the `fs.inotify.*` limits on Ubuntu ([read more](#enospc-errors-on-linux)) |