add prod stage

.gitlab-ci.yml

@@ -3,18 +3,22 @@ image: python:2.7-stretch
 stages:
   - test
   - build
+  - production
 
-before_script:
-  - "pip install -U platformio"
 
-firmware-build:
+firmware:
   stage: build
   image: python:2.7-stretch
+  before_script:
+    - "pip install -U platformio"
   script:
     - mv data/example.config.json data/config.json
     - pio run -t clean
     - pio run
     - pio run -t buildfs
+
+release:
+  stage: production
   artifacts:
     paths:
       - .pioenvs/build/firmware.bin