[ci] change pipeline to steps

.woodpecker/.hugo-build.yml

@@ -1,4 +1,4 @@
-pipeline:
+steps:
   build-stable:
     image: code.cozy.town/vrifox/hugoci:latest
     commands:
@@ -14,21 +14,19 @@ pipeline:
       - chmod 700 /root/.ssh/id_ed25519
       - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > /root/.ssh/config
       - rsync -rv --delete -e "ssh -p $SSH_PORT -i /root/.ssh/id_ed25519" /woodpecker/build/ caddy@$SSH_HOST:/var/lib/caddy/woodpecker/cozy.town/ --mkpath --checksum
-    secrets: 
+    secrets:
       - ssh_key
       - ssh_port
       - ssh_host
     when:
       branch: main
 
-
-
   build-dev:
     image: code.cozy.town/vrifox/hugoci:latest
     commands:
       - hugo --destination /woodpecker/build/ --baseURL "https://dev.vrifox.cc/${CI_COMMIT_BRANCH}/${CI_COMMIT_SHA}/" --cleanDestinationDir
     when:
-      branch: 
+      branch:
         exclude: main
 
   upload-dev:
@@ -40,10 +38,10 @@ pipeline:
       - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" > /root/.ssh/config
       - rsync -rv --delete -e "ssh -p $SSH_PORT -i /root/.ssh/id_ed25519" /woodpecker/build/ caddy@$SSH_HOST:/var/lib/caddy/woodpecker/cozy.town-dev/${CI_COMMIT_BRANCH}/${CI_COMMIT_SHA}/ --mkpath --checksum
       - echo "The preview is now available on https://dev.cozy.town/${CI_COMMIT_BRANCH}/${CI_COMMIT_SHA}/"
-    secrets: 
+    secrets:
       - ssh_key
       - ssh_port
       - ssh_host
     when:
-      branch: 
-        exclude: main
+      branch:
+        exclude: main