fix: correctly record the datetime for last_active in case of change defaultLocale

Author: datamweb

src/Authentication/Authenticators/AccessTokens.php

@@ -235,7 +235,7 @@ public function recordActiveDate(): void
             );
         }
 
-        $this->user->last_active = Time::now();
+        $this->user->last_active = Time::now()->format('Y-m-d H:i:s');
 
         $this->provider->updateActiveDate($this->user);
     }

src/Authentication/Authenticators/Session.php

@@ -856,7 +856,7 @@ public function recordActiveDate(): void
             );
         }
 
-        $this->user->last_active = Time::now();
+        $this->user->last_active = Time::now()->format('Y-m-d H:i:s');
 
         $this->provider->updateActiveDate($this->user);
     }