Move setting global voice assistant to constructor (#168)

esphome/components/voice_assistant/voice_assistant.cpp

@@ -25,6 +25,10 @@ static const size_t SEND_BUFFER_SIZE = INPUT_BUFFER_SIZE * sizeof(int16_t);
 static const size_t RECEIVE_SIZE = 1024;
 static const size_t SPEAKER_BUFFER_SIZE = 16 * RECEIVE_SIZE;
 
+VoiceAssistant::VoiceAssistant() {
+ global_voice_assistant = this;
+}
+
 float VoiceAssistant::get_setup_priority() const { return setup_priority::AFTER_CONNECTION; }
 
 bool VoiceAssistant::start_udp_socket_() {
@@ -70,12 +74,6 @@ bool VoiceAssistant::start_udp_socket_() {
  return true;
 }
 
-void VoiceAssistant::setup() {
- ESP_LOGCONFIG(TAG, "Setting up Voice Assistant...");
-
- global_voice_assistant = this;
-}
-
 bool VoiceAssistant::allocate_buffers_() {
  if (this->send_buffer_ != nullptr) {
  return true; // Already allocated