EZP-31986: Added missing RuntimeException import to CompileAssetsCommand

[adamwojs]

Question	Answer
JIRA issue	EZP-31986
Bug/Improvement	yes
New feature	no
Target version	1.0
BC breaks	no
Tests pass	yes
Doc needed	no

Follow up for #19 . Currently ezplatform:encore:compile throws

In CompileAssetsCommand.php line 82:
!!                                                                                 
!!    Attempted to load class "RuntimeException" from namespace "EzSystems\EzPlat  
!!    formEncoreBundle\Command".                                                   
!!    Did you forget a "use" statement for e.g. "Webimpress\SafeWriter\Exception\  
!!    RuntimeException", "Symfony\Component\Yaml\Exception\RuntimeException", "Sy  
!!    mfony\Component\Validator\Exception\RuntimeException", "Symfony\Component\T  
!!    ranslation\Exception\RuntimeException", "Symfony\Component\String\Exception  
!!    \RuntimeException", "Symfony\Component\Serializer\Exception\RuntimeExceptio  
!!    n", "Symfony\Component\Security\Core\Exception\RuntimeException", "Symfony\  
!!    Component\PropertyAccess\Exception\RuntimeException", "Symfony\Component\Pr  
!!    ocess\Exception\RuntimeException", "Symfony\Component\Mime\Exception\Runtim  
!!    eException", "Symfony\Component\Intl\Exception\RuntimeException", "Symfony\  
!!    Component\Form\Exception\RuntimeException", "Symfony\Component\DependencyIn  
!!    jection\Exception\RuntimeException", "Symfony\Component\Console\Exception\R  
!!    untimeException", "SensioLabs\Security\Exception\RuntimeException", "Pagerf  
!!    anta\Exception\RuntimeException", "Laminas\EventManager\Exception\RuntimeEx  
!!    ception", "Laminas\Code\Exception\RuntimeException", "Laminas\Code\Generato  
!!    r\Exception\RuntimeException", "Laminas\Code\Reflection\Exception\RuntimeEx  
!!    ception", "JMS\TranslationBundle\Exception\RuntimeException", "JMS\Serializ  
!!    er\Exception\RuntimeException" or "Imagine\Exception\RuntimeException"?      
!!                                                                                 

when subprocess execution failed. Correct output is

 An error occurred when executing the "yarn encore dev" command:              
!!                                                                                 
!!    yarn run v1.3.2                                                              
!!    $ /home/awojs/eZ/ezplatform-sf-recipies/node_modules/.bin/encore dev         
!!    Running webpack ...                                                          
!!                                                                                 
!!     ERROR  Failed to compile with 1 errors2:28:20 PM                            
!!                                                                                 
!!     ....
!!               
!!    (node:14554) [DEP0005] DeprecationWarning: Buffer() is deprecated due to se  
!!    curity and usability issues. Please use the Buffer.alloc(), Buffer.allocUns  
!!    afe(), or Buffer.from() methods instead.                                     
!!    error Command failed with exit code 2.  

TODO:

• Implement feature / fix a bug.
• Implement tests.
• Fix new code according to Coding Standards ($ composer fix-cs).
• Ask for Code Review.

[lserwatka]

You can merge it up.

[adamwojs]

Done.