feat: added deploy using gitlab ci

Signed-off-by: Louis Vallat <contact@louis-vallat.fr>

.gitlab-ci.yml

@@ -0,0 +1,17 @@
+image: ghcr.io/getzola/zola:v0.18.0
+
+stages:
+  - deploy
+
+deploy:
+  stage: deploy
+  before_script:
+    - eval $(ssh-agent -s)
+    - echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
+    - mkdir -p ~/.ssh
+    - chmod 700 ~/.ssh
+  script:
+    - zola build
+    - rsync -e "ssh -o StrictHostKeyChecking=no -p $SSH_PORT" -rvz ./public/ $SSH_DESTINATION:/var/www/blog.louis-vallat.fr/ --delete
+  only:
+    - master