Add build to ESPHome validation

.github/workflows/validate_esphome.yml

@@ -25,3 +25,11 @@ jobs:
         run: yamllint -c "./.yamllint/rules.yml" nspanel_esphome_addon_climate_heat.yaml
       - name: Validate nspanel_esphome_prebuilt.yaml
         run: yamllint -c "./.yamllint/rules.yml" nspanel_esphome_prebuilt.yaml
+      - name: Build core
+        uses: esphome/build-action@v1.8.0
+        with:
+          yaml_file: /test/ESPHome/core.yaml
+      - name: Build core+advanced
+        uses: esphome/build-action@v1.8.0
+        with:
+          yaml_file: /test/ESPHome/advanced.yaml

test/ESPHome/advanced.yaml

@@ -0,0 +1,9 @@
+substitutions:
+  device_name: nspanel
+  wifi_ssid: "nspanel"
+  wifi_password: "NSPanel_HA_Blueprint"
+  nextion_update_url: "https://github.com/Blackymas/NSPanel_HA_Blueprint/dummy"
+
+packages:
+  core_package: !include /nspanel_esphome.yaml # Core package
+  advanced_package: !include /nspanel_esphome_advanced.yaml

test/ESPHome/core.yaml

@@ -0,0 +1,8 @@
+substitutions:
+  device_name: nspanel
+  wifi_ssid: "nspanel"
+  wifi_password: "NSPanel_HA_Blueprint"
+  nextion_update_url: "https://github.com/Blackymas/NSPanel_HA_Blueprint/dummy"
+
+packages:
+  core_package: !include /nspanel_esphome.yaml # Core package