feat: enable Docker support by default

Author: dunglas

src/Configurator/DockerComposeConfigurator.php

@@ -36,7 +36,7 @@ public function __construct(Composer $composer, IOInterface $io, Options $option
 
     public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
     {
-        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? false;
+        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? true;
         if (!$installDocker) {
             return;
         }

src/Configurator/DockerfileConfigurator.php

@@ -23,7 +23,7 @@ class DockerfileConfigurator extends AbstractConfigurator
 {
     public function configure(Recipe $recipe, $config, Lock $lock, array $options = [])
     {
-        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? false;
+        $installDocker = $this->composer->getPackage()->getExtra()['symfony']['docker'] ?? true;
         if (!$installDocker) {
             return;
         }