Added missing void return types to 'process' (#553)

Author: tbialcz

src/bundle/Debug/DependencyInjection/Compiler/DataCollectorPass.php

@@ -14,7 +14,7 @@
 
 class DataCollectorPass implements CompilerPassInterface
 {
-    public function process(ContainerBuilder $container)
+    public function process(ContainerBuilder $container): void
     {
         if (!$container->hasDefinition(IbexaCoreCollector::class)) {
             return;

src/bundle/RepositoryInstaller/DependencyInjection/Compiler/InstallerTagPass.php

@@ -19,9 +19,9 @@
  */
 class InstallerTagPass implements CompilerPassInterface
 {
-    public const INSTALLER_TAG = 'ibexa.installer';
+    public const string INSTALLER_TAG = 'ibexa.installer';
 
-    public function process(ContainerBuilder $container)
+    public function process(ContainerBuilder $container): void
     {
         if (!$container->hasDefinition(InstallPlatformCommand::class)) {
             return;