ci: uses woodpecker instead of drone

.drone.yml

@@ -1,83 +0,0 @@
-kind: pipeline
-name: default
-type: docker
-golang-image: &golang-image golang:1.17-alpine
-gobin-volume: &gobin-volume
-  name: gobin
-  path: /go/bin
-usr-volume: &usr-volume
-  name: usr
-  path: /usr
-deps-command: &deps-command apk add build-base git
-steps:
-- name: tags
-  image: alpine/git
-  commands:
-  - git fetch --tags
-- name: install-deps
-  image: *golang-image
-  volumes:
-  - *gobin-volume
-  - *usr-volume
-  commands:
-  - *deps-command
-- name: lint
-  image: *golang-image
-  volumes:
-  - *gobin-volume
-  - *usr-volume
-  commands:
-  - make lint
-  depends_on:
-  - tags
-  - install-deps
-- name: test
-  image: *golang-image
-  volumes:
-  - *gobin-volume
-  - *usr-volume
-  commands:
-  - make test
-  depends_on:
-  - install-deps
-  - tags
-  - lint
-- name: build
-  image: *golang-image
-  volumes:
-  - *gobin-volume
-  - *usr-volume
-  commands:
-  - make build
-  depends_on:
-  - tags
-  - lint
-  - test
-  - install-deps
-  when:
-    event:
-      exclude:
-      - tag
-- name: release
-  image: *golang-image
-  volumes:
-  - *gobin-volume
-  - *usr-volume
-  environment:
-    GITEA_TOKEN:
-      from_secret: gitea_token
-  commands:
-  - make release
-  depends_on:
-  - test
-  - lint
-  - tags
-  - install-deps
-  when:
-    event:
-    - tag
-volumes:
-- name: gobin
-  temp: {}
-- name: usr
-  temp: {}

.woodpecker.yml

@@ -0,0 +1,26 @@
+pipeline:
+  tags:
+    image: alpine/git
+    commands:
+    - git fetch --tags
+  lint:
+    image: golang:1.17
+    commands:
+    - make lint
+  test:
+    image: golang:1.17
+    commands:
+    - make test
+  build:
+    image: golang:1.17
+    commands:
+    - make build
+  release:
+    image: golang:1.17
+    commands:
+    - make release
+    secrets:
+    - gitea_token
+    when:
+      event:
+      - tag