Rename the branch deploying to staging. to collabora/staging

.gitlab-ci.collabora.yml

@@ -113,7 +113,7 @@ deploy staging:
   before_script:
     - export SECRET_KEY=$(echo ${STAGING_SECRET_KEY} | base64 -d)
   rules:
-    - if: '$CI_COMMIT_BRANCH == "collabora/next"'
+    - if: '$CI_COMMIT_BRANCH == "collabora/staging"'
 
 stop_staging:
   stage: cleanup
@@ -122,7 +122,7 @@ stop_staging:
   environment:
     name: $CI_COMMIT_REF_NAME
   rules:
-    - if: '$CI_COMMIT_BRANCH == "collabora/next"'
+    - if: '$CI_COMMIT_BRANCH == "collabora/staging"'
       when: manual
   needs:
     - deploy staging