feat(composer): add `cuh` alias for updating global packages (#6048)

Closes #6048

plugins/composer/README.md

@@ -15,7 +15,7 @@ Original author: Daniel Gomes <me@danielcsgomes.com>
 ## Aliases
 
 | Alias  | Command                            | Description                                                                             |
-| ------ | ---------------------------- | --------------------------------------------------------------------------------------- |
+| ------ | ---------------------------------- | --------------------------------------------------------------------------------------- |
 | `c`    | `composer`                         | Starts composer                                                                         |
 | `ccp`  | `composer create-project`          | Create new project from an existing package                                             |
 | `cdo`  | `composer dump-autoload -o`        | Converts PSR-0/4 autoloading to classmap for a faster autoloader (good for production)  |
@@ -32,3 +32,4 @@ Original author: Daniel Gomes <me@danielcsgomes.com>
 | `cs`   | `composer show`                    | Lists available packages, with optional filtering                                       |
 | `csu`  | `composer self-update`             | Updates composer to the latest version                                                  |
 | `cu`   | `composer update`                  | Updates composer dependencies and `composer.lock` file                                  |
+| `cuh`  | `composer update -d <config-home>` | Updates globally installed packages                                                     |

plugins/composer/composer.plugin.zsh

@@ -48,6 +48,7 @@ alias crm='composer remove'
 alias cs='composer show'
 alias csu='composer self-update'
 alias cu='composer update'
+alias cuh='composer update --working-dir=$(composer config -g home)'
 
 
 ## If Composer not found, try to add known directories to $PATH