Fix/multi version

.gitlab-ci.yml

 pages:
   stage: deploy
   image: python:3.9.18-slim-bullseye
+  variables:
+    PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+    PAGES_BRANCH: gl-pages
+    HTTPS_REMOTE: https://gitlab-ci-token:${ACCESS_TOKEN}@${CI_SERVER_HOST}/rep/${CI_PROJECT_PATH}.git
+  before_script:
+    - pip install -q mkdocs-material mike
+    - apt-get update -qq && apt-get -qq install -y git > /dev/null
+    - git config --global --replace-all user.name $GITLAB_USER_NAME
+    - git config --global --replace-all user.email $GITLAB_USER_EMAIL
+    - git fetch origin $PAGES_BRANCH && git checkout $PAGES_BRANCH || git checkout -b $PAGES_BRANCH origin/$PAGES_BRANCH || echo "Pages branch not deployed yet."
+    - git checkout $CI_COMMIT_SHA
   script:
-    - pip install mkdocs-material
-    - mkdocs build --site-dir public
+    - |
+      if [ -n "$CI_COMMIT_TAG" ]; then
+        mike deploy --deploy-prefix public -r $HTTPS_REMOTE -p -b $PAGES_BRANCH -u $CI_COMMIT_TAG latest
+        mike set-default --deploy-prefix public -r $HTTPS_REMOTE -p -b $PAGES_BRANCH latest
+      elif [ "$CI_COMMIT_REF_NAME" == "develop" ]; then
+        mike deploy --deploy-prefix public -r $HTTPS_REMOTE -p -b $PAGES_BRANCH -u $CI_COMMIT_BRANCH
+      fi
+    - git checkout $PAGES_BRANCH -- public/
   artifacts:
     paths:
-      - public
+      - public/
   rules:
-    - if: '$CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH'
+    - if: '$CI_COMMIT_TAG'
+    - if: '$CI_COMMIT_REF_NAME == "develop"'
+      when: always
+    - when: never
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