Fix intent component initialisation (#36064)

The intent component expect this method from every module that is called intent.
Fixes #35522

homeassistant/components/alexa/intent.py

@@ -40,6 +40,16 @@ def async_setup(hass):
     hass.http.register_view(AlexaIntentsView)
 
 
+async def async_setup_intents(hass):
+    """
+    Do intents setup.
+
+    Right now this module does not expose any, but the intent component breaks
+    without it.
+    """
+    pass  # pylint: disable=unnecessary-pass
+
+
 class UnknownRequest(HomeAssistantError):
     """When an unknown Alexa request is passed in."""