Woodpecker CI: Deploy docs on stable tag

.woodpecker/docs.yaml

@@ -0,0 +1,21 @@
+when:
+  - event: tag
+  - event: manual
+    branch: stable
+
+labels:
+  platform: linux/amd64
+
+skip_clone: true
+
+steps:
+  trigger-deploy:
+    image: docker.io/woodpeckerci/plugin-trigger:1.1.1
+    settings:
+      deploy: 'docs'
+      last-successful: true
+      token:
+        from_secret:
+          pleroma-ci-woodpecker-token
+      repositories:
+        - pleroma/docs@master