ci: move from drone to woodpecker

.drone.yml

@@ -1,103 +0,0 @@
----
-kind: pipeline
-type: docker
-name: default
-
-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: submodules
-    image: alpine/git
-    commands:
-      - git submodule init
-      - git submodule update
-    depends_on:
-      - tags
-
-  - name: install-tools
-    image: *golang-image
-    volumes:
-      - *gobin-volume
-      - *usr-volume
-    commands:
-      - *deps-command
-      - make install-tools
-
-  - name: lint
-    image: *golang-image
-    volumes:
-      - *gobin-volume
-      - *usr-volume
-    commands:
-      - make lint
-    depends_on:
-      - tags
-      - submodules
-      - install-tools
-
-  - name: test
-    image: *golang-image
-    volumes:
-      - *gobin-volume
-      - *usr-volume
-    commands:
-      - make test
-    depends_on:
-      - install-tools
-      - tags
-      - lint
-      - submodules
-
-  - name: build
-    image: *golang-image
-    volumes:
-      - *gobin-volume
-      - *usr-volume
-    commands:
-      - make build
-    depends_on:
-      - lint
-      - test
-    when:
-      event:
-        exclude:
-          - tag
-
-  - name: release
-    image: *golang-image
-    volumes:
-      - *gobin-volume
-      - *usr-volume
-    environment:
-      GITHUB_TOKEN:
-        from_secret: github_token
-    commands:
-      - goreleaser release --rm-dist --parallelism=1
-    depends_on:
-      - lint
-      - test
-    when:
-      event:
-        - tag
-
-volumes:
-  - name: gobin
-    temp: {}
-
-  - name: usr
-    temp: {}

.woodpecker.yml

@@ -0,0 +1,34 @@
+pipeline:
+  tags:
+    image: alpine/git
+    commands:
+    - git fetch --tags
+  submodules:
+    image: alpine/git
+    commands:
+    - git submodule init
+    - git submodule update
+    when:
+      event:
+      - tag
+  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:
+    - github_token
+    when:
+      event:
+      - tag