tests: only ignore external deprecation warnings

and error out on internal ones

phpunit.xml.dist

@@ -11,7 +11,7 @@
     <ini name="error_reporting" value="-1"/>
     <server name="APP_ENV" value="test" force="true"/>
     <server name="SHELL_VERBOSITY" value="-1"/>
-    <server name="SYMFONY_DEPRECATIONS_HELPER" value="weak"/>
+    <server name="SYMFONY_DEPRECATIONS_HELPER" value='max[direct]=0&amp;quiet[]=indirect'/>
     <server name="KERNEL_CLASS" value="Dbp\Relay\TemplateBundle\Tests\Kernel"/>
   </php>
   <testsuites>

src/Command/TestCommand.php

@@ -24,7 +24,7 @@ class TestCommand extends Command
         $this->setDescription('Hey there!');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $argument = $input->getArgument('argument');
         $output->writeln($argument);

src/DataPersister/PlaceDataPersister.php

@@ -23,7 +23,7 @@ class PlaceDataPersister extends AbstractController implements DataPersisterInte
         return $data instanceof Place;
     }
 
-    public function persist($data)
+    public function persist($data): void
     {
         // TODO
     }

src/DependencyInjection/Configuration.php

@@ -9,7 +9,7 @@ use Symfony\Component\Config\Definition\ConfigurationInterface;
 
 class Configuration implements ConfigurationInterface
 {
-    public function getConfigTreeBuilder()
+    public function getConfigTreeBuilder(): TreeBuilder
     {
         $treeBuilder = new TreeBuilder('dbp_relay_template');