ci: add lint pipeline

.woodpecker/lint.yaml

@@ -0,0 +1,25 @@
+---
+when:
+  event: pull_request
+
+steps:
+  woodpecker:
+    image: woodpeckerci/woodpecker-cli:v2.7.0-alpine
+    commands:
+      - woodpecker-cli lint .woodpecker/*.yaml
+    when:
+      path: .woodpecker/**/*.yaml
+    depends_on: []
+
+  dockerfile:
+    image: ghcr.io/hadolint/hadolint:v2.12.0
+    when:
+      path:
+        - Dockerfile
+    depends_on: []
+
+  cspell:
+    image: ghcr.io/streetsidesoftware/cspell:8.13.3
+    commands:
+      - /usr/local/bin/cspell-cli lint .
+    depends_on: []