Before script and image for docs deployment

.gitlab-ci.yml

@@ -42,8 +42,9 @@ build-production:
 
 deploy-docs:
   stage: deploy-docs
-  script:
-  - curl -X POST -F"token=$DOCS_TRIGGER_PIPELINE" -F"ref=master" https://gitlab.com/api/v4/projects/15685485/trigger/pipeline
+  image: python:3.8-alpine
+  before_script: apk add curl
+  script: curl -X POST -F"token=$DOCS_TRIGGER_PIPELINE" -F'ref=master' https://gitlab.com/api/v4/projects/15685485/trigger/pipeline
   only:
     refs:
     - develop