Migrate from Drone CI to Woodpecker CI

Replace .drone.yml with .woodpecker.yaml using official
woodpeckerci/plugin-kaniko image. Update base image to Alpine 3.22.2.

.drone.yml

@@ -1,19 +0,0 @@
-kind: pipeline
-type: kubernetes
-name: default
-
-steps:
-- name: docker
-  image: harbor.ntppool.org/ntppool/drone-kaniko:main
-  pull: always
-  settings:
-    dockerfile: Dockerfile
-    repo: library/static-web
-    registry: harbor.ntppool.org
-    auto_tag: true
-    tags: SHA7,${DRONE_SOURCE_BRANCH}
-    cache: true
-    username:
-      from_secret: harbor_library_username
-    password:
-      from_secret: harbor_library_password

.woodpecker.yaml

@@ -0,0 +1,18 @@
+when:
+  - event: [push, pull_request, manual]
+
+steps:
+  - name: docker
+    image: woodpeckerci/plugin-kaniko
+    settings:
+      dockerfile: Dockerfile
+      registry: harbor.ntppool.org
+      repo: library/static-web
+      tags:
+        - ${CI_COMMIT_SHA:0:7}
+        - ${CI_COMMIT_BRANCH}
+      cache: true
+      username:
+        from_secret: harbor_library_username
+      password:
+        from_secret: harbor_library_password

Dockerfile

@@ -1,4 +1,4 @@
-FROM harbor.ntppool.org/perlorg/base-os:3.22.0
+FROM harbor.ntppool.org/perlorg/base-os:3.22.2
 ENV BUILD_VERSION 1
 USER root
 WORKDIR /web