Fix some self deprecation notices

src/Command/CleanDownloadedImagesCommand.php

@@ -38,7 +38,7 @@ class CleanDownloadedImagesCommand extends Command
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);
 

src/Command/CleanDuplicatesCommand.php

@@ -45,7 +45,7 @@ class CleanDuplicatesCommand extends Command
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->io = new SymfonyStyle($input, $output);
 

src/Command/ExportCommand.php

@@ -49,7 +49,7 @@ class ExportCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);
 

src/Command/GenerateUrlHashesCommand.php

@@ -39,7 +39,7 @@ class GenerateUrlHashesCommand extends Command
             ->addArgument('username', InputArgument::OPTIONAL, 'User to process entries');
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->output = $output;
 

src/Command/Import/ImportCommand.php

@@ -97,7 +97,7 @@ class ImportCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output->writeln('Start : ' . (new \DateTime())->format('d-m-Y G:i:s') . ' ---');
 

src/Command/Import/RedisWorkerCommand.php

@@ -33,7 +33,7 @@ class RedisWorkerCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $output->writeln('Worker started at: ' . (new \DateTime())->format('d-m-Y G:i:s'));
         $output->writeln('Waiting for message ...');

src/Command/InstallCommand.php

@@ -70,7 +70,7 @@ class InstallCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->defaultInput = $input;
 

src/Command/ListUserCommand.php

@@ -33,7 +33,7 @@ class ListUserCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);
 

src/Command/ReloadEntryCommand.php

@@ -51,7 +51,7 @@ class ReloadEntryCommand extends Command
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);
 

src/Command/ShowUserCommand.php

@@ -37,7 +37,7 @@ class ShowUserCommand extends Command
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $this->io = new SymfonyStyle($input, $output);
 

src/Command/TagAllCommand.php

@@ -42,7 +42,7 @@ class TagAllCommand extends Command
         ;
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);
 

src/Command/UpdatePicturesPathCommand.php

@@ -37,7 +37,7 @@ class UpdatePicturesPathCommand extends Command
             );
     }
 
-    protected function execute(InputInterface $input, OutputInterface $output)
+    protected function execute(InputInterface $input, OutputInterface $output): int
     {
         $io = new SymfonyStyle($input, $output);