[pre-commit.ci] auto fixes from pre-commit.com hooks

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include/dynamic-graph/python/signal-wrapper.hh

@@ -42,7 +42,7 @@ class SignalWrapper : public Signal<T, Time> {
     this->setFunction(f);
   }
 
-  virtual ~SignalWrapper(){};
+  virtual ~SignalWrapper() {};
 
  private:
   T& call(T& value, Time t) {