Fix template button after abstract press_action (#3250)

esphome/components/template/button/__init__.py

@@ -1,10 +1,13 @@
 import esphome.config_validation as cv
 from esphome.components import button
 
+from .. import template_ns
+
+TemplateButton = template_ns.class_("TemplateButton", button.Button)
 
 CONFIG_SCHEMA = button.BUTTON_SCHEMA.extend(
     {
-        cv.GenerateID(): cv.declare_id(button.Button),
+        cv.GenerateID(): cv.declare_id(TemplateButton),
     }
 ).extend(cv.COMPONENT_SCHEMA)
 

esphome/components/template/button/template_button.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "esphome/components/button/button.h"
+
+namespace esphome {
+namespace template_ {
+
+class TemplateButton : public button::Button {
+ public:
+  // Implements the abstract `press_action` but the `on_press` trigger already handles the press.
+  void press_action() override{};
+};
+
+}  // namespace template_
+}  // namespace esphome