👷 update python version

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: circleci/python:3.8
+      - image: circleci/python:latest
     working_directory: ~/repo
     steps:
       - checkout
@@ -25,7 +25,7 @@ jobs:
           
   test:
     docker: 
-      - image: circleci/python:3.8
+      - image: circleci/python:latest
       - image: circleci/postgres:9.6.2-alpine
         environment:
           POSTGRES_USER: myUser
@@ -74,8 +74,7 @@ jobs:
       - checkout
       - run:
           name: Heroku deploy
-          command: |
-            git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_APP_NAME.git HEAD:main
+          command: git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_APP_NAME.git HEAD:main
       - run:
           name: Smoke test
           command: |