Need to replace `robloach/component-installer`

With Composer 2 having been released and Composer 1 going away soon, some libraries need to be updated to support C2 or risk breaking any projects that depend upon them. [robloach/component-installer](https://github.com/RobLoach/component-installer) is one such library. It has been labeled as **DEPRECATED**, so it will not be updated for Composer 2.

```
$ composer update
The "robloach/component-installer" plugin was skipped because it requires a Plugin API version ("^1.0") that does not match your Composer installation ("2.0.0"). You may need to run composer update with the "--no-plugins" option.
[...]
```

I ask that this project please be updated so it replaces `robloach/component-installer` with an alternative library as soon as possible. [Several choices][alternatives] are listed in its README.

---

### Edit 01/22/2121:
Still getting warnings using Composer 2, but now it has a specific recommendation (which happens to be the first one on the deprecated package's [alternatives list][alternatives]):

```
Package robloach/component-installer is abandoned, you should avoid using it. Use oomphinc/composer-installers-extender instead.
```

[alternatives]: https://github.com/RobLoach/component-installer#deprecated