Make branch names reflect discussion result

See https://whetstone.privatestorage.io/opensource/PrivateStorageio/-/issues/58

.gitlab-ci.yml

@@ -17,7 +17,7 @@ system-tests:
 deploy-to-staging:
   stage: "deploy"
   only:
-    - "develop"
+    - "staging"
   script:
     - echo -n "Hello $GITLAB_USER_LOGIN from $CI_JOB_NAME. I was triggered by $CI_PIPELINE_SOURCE "
     - echo "and would like to deploy the $CI_COMMIT_BRANCH branch to the staging environment."
@@ -25,7 +25,7 @@ deploy-to-staging:
 deploy-to-production:
   stage: "deploy"
   only:
-    - "main"
+    - "production"
   script:
     - echo -n "Hello $GITLAB_USER_LOGIN from $CI_JOB_NAME. I was triggered by $CI_PIPELINE_SOURCE "
     - echo "and would like to deploy the $CI_COMMIT_BRANCH branch to the production environment."