[esp32_hosted][fingerprint_grow] Fix two remaining ESP32 toolchain warnings (#16442)

esphome/components/esp32_hosted/update/esp32_hosted_update.cpp

@@ -121,7 +121,7 @@ void Esp32HostedUpdate::setup() {
       }
     } else {
       ESP_LOGW(TAG, "Invalid app description magic word: 0x%08" PRIx32 " (expected 0x%08" PRIx32 ")",
-               app_desc->magic_word, ESP_APP_DESC_MAGIC_WORD);
+               app_desc->magic_word, static_cast<uint32_t>(ESP_APP_DESC_MAGIC_WORD));
       this->state_ = update::UPDATE_STATE_NO_UPDATE;
     }
   } else {

esphome/components/fingerprint_grow/fingerprint_grow.cpp

@@ -206,6 +206,7 @@ uint8_t FingerprintGrowComponent::save_fingerprint_() {
       break;
     case ENROLL_MISMATCH:
       ESP_LOGE(TAG, "Scans do not match");
+      [[fallthrough]];
     default:
       return this->data_[0];
   }