Add separate deploy pipeline

bitbucket-pipelines.yml

@@ -30,6 +30,10 @@ aliases:
   - export USE_AWS=False
   - pipenv install --dev --system
   - ./server/run_unittests_coverage.sh
+- &deploy-prod
+  name: Heroku deploy skillbox-prod
+  script:
+  - git push https://heroku:$HEROKU_API_KEY@git.heroku.com/skillbox-prod.git HEAD:master
 
 pipelines:
   default:
@@ -38,10 +42,6 @@ pipelines:
   branches:
     master:
     - step: *unittest-python
-    - step:
-        name: Heroku deploy skillbox-prod
-        script:
-        - git push https://heroku:$HEROKU_API_KEY@git.heroku.com/skillbox-prod.git HEAD:master
 
     develop:
     - step: *unittest-python
@@ -50,3 +50,8 @@ pipelines:
         script:
         - git push https://heroku:$HEROKU_API_KEY@git.heroku.com/skillbox-stage.git develop:master
 
+  deployment:
+    prod:
+    - step: *unittest-python
+    - step: *deploy-prod
+