Update .gitlab-ci.yml

.gitlab-ci.yml

-default:
-  image: ruby:2.6
+build-job:
+  stage: build
+  script:
+    - echo "Hello, "
 
-  services:
-    - postgres:11.7
+test-job1:
+  stage: test
+  script:
+    - echo "This job tests something"
 
-  before_script:
-    - bundle install
+test-job2:
+  stage: test
+  script:
+    - echo "This job tests something, but takes more time than test-job1."
+    - echo "After the echo commands complete, it runs the sleep command for 20 seconds"
+    - echo "which simulates a test that runs 20 seconds longer than test-job1"
+    - sleep 20
 
-test:
+deploy-prod:
+  stage: deploy
   script:
-    - bundle exec rake spec
\ No newline at end of file
+    - echo "This job deploys something from the $CI_COMMIT_BRANCH branch."
\ No newline at end of file