CI: Switch all to alpine:latest, all deps are in stable

.gitlab-ci.yml

@@ -5,24 +5,20 @@ stages:
 variables:
   BRANCH: "develop"
 
+image: alpine:latest
 
 fetch-and-build:
- # mkdocs* packages should be in next Alpine release
  # py3-regex is used by mkdocs-material search plugin, alpine doesn't have recommended dependencies
- image: alpine:edge
  stage: fetch-and-build
  artifacts:
    paths:
    - site/
  script:
- - grep main /etc/apk/repositories | sed 's;main;testing;' >> /etc/apk/repositories
  - apk update
  - apk add git mkdocs-material py3-markdown-include py3-regex
- - apk add -t mkdocs-missing-deps py3-markupsafe py3-pathspec py3-platformdirs
  - ./manage.sh all --branch $BRANCH
 
 deploy:
-  image: alpine:latest
   stage: deploy
   only:
   - master@pleroma/docs