fix: modernize-use-equals-default warnings (#44935)

fix: use '= default' to define a trivial destructor [modernize-use-equals-default]

shell/browser/auto_updater.h

@@ -43,7 +43,7 @@ class Delegate {
                                   const std::string& update_url) {}
 
  protected:
-  virtual ~Delegate() {}
+  virtual ~Delegate() = default;
 };
 
 class AutoUpdater {