Fixing woodpecker. (#235)

.woodpecker.yml

@@ -1,17 +1,25 @@
-pipeline:
+steps:
   prettier_markdown_check:
     image: tmknom/prettier
     commands:
       - prettier -c "*.md" "*.yml" "examples/vars.yml"
+    when:
+      - event: pull_request
+
   check_ansible_format:
     image: alpine:3
     commands:
       - apk add ansible
       - ansible-playbook lemmy.yml --syntax-check
       - ansible-playbook lemmy-almalinux.yml --syntax-check
       - ansible-playbook uninstall.yml --syntax-check
+    when:
+      - event: pull_request
+
   ansible_lint:
     image: alpine:3
     commands:
       - apk add ansible ansible-lint
       - ansible-lint --warn-list experimental lemmy.yml lemmy-almalinux.yml uninstall.yml examples/vars.yml
+    when:
+      - event: pull_request