Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -1,6 +1,11 @@
 image: python:latest
 
+stages:
+    - build
+    - deploy
+
 build:       # This job runs in the build stage, which runs first.
+    stage: build
     script:
         - pip install build twine
         - mkdir build/src/AirwatchAPI/
@@ -8,6 +13,7 @@ build:       # This job runs in the build stage, which runs first.
         - cd build/
         - python -m build
 deploy:
+    stage: deploy
     variables:
         TWINE_USERNAME: gitlab-ci-token
         TWINE_PASSWORD: $CI_JOB_TOKEN