[template.output] Avoid heap allocation for triggers (#13709)

esphome/components/template/output/template_output.h

@@ -8,22 +8,22 @@ namespace esphome::template_ {
 
 class TemplateBinaryOutput final : public output::BinaryOutput {
  public:
-  Trigger<bool> *get_trigger() const { return trigger_; }
+  Trigger<bool> *get_trigger() { return &this->trigger_; }
 
  protected:
-  void write_state(bool state) override { this->trigger_->trigger(state); }
+  void write_state(bool state) override { this->trigger_.trigger(state); }
 
-  Trigger<bool> *trigger_ = new Trigger<bool>();
+  Trigger<bool> trigger_;
 };
 
 class TemplateFloatOutput final : public output::FloatOutput {
  public:
-  Trigger<float> *get_trigger() const { return trigger_; }
+  Trigger<float> *get_trigger() { return &this->trigger_; }
 
  protected:
-  void write_state(float state) override { this->trigger_->trigger(state); }
+  void write_state(float state) override { this->trigger_.trigger(state); }
 
-  Trigger<float> *trigger_ = new Trigger<float>();
+  Trigger<float> trigger_;
 };
 
 }  // namespace esphome::template_