Clean up repositories and cron code.

app/Console/Commands/Upgrade/MigrateToRules.php

@@ -87,7 +87,7 @@ class MigrateToRules extends Command
             $currencyCode = $this->tryDecrypt($currencyPreference->data);
 
             // try json decrypt just in case.
-            if (\strlen($currencyCode) > 3) {
+            if (strlen($currencyCode) > 3) {
                 $currencyCode = json_decode($currencyCode) ?? 'EUR';
             }
 

app/Console/Commands/Upgrade/UpgradeDatabase.php

@@ -57,9 +57,9 @@ class UpgradeDatabase extends Command
     /**
      * Execute the console command.
      *
-     * @return mixed
+     * @return int
      */
-    public function handle()
+    public function handle(): int
     {
         $commands = [
             'firefly-iii:transaction-identifiers',
@@ -83,5 +83,7 @@ class UpgradeDatabase extends Command
             $result = Artisan::output();
             echo $result;
         }
+
+        return 0;
     }
 }