Update '.drone.yml'

.drone.yml

@@ -2,21 +2,23 @@
 kind: pipeline
 name: docker-json-validate build
 
-steps:
-- name: docker  
-  image: plugins/docker
-  settings:
-    repo: git.freifunk-rhein-sieg.net/freifunk-troisdorf/docker-json-validate
-    registry: git.freifunk-rhein-sieg.net
+pipeline:
+  docker:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      repo: git.freifunk-rhein-sieg.net/freifunk-troisdorf/docker-json-validate
+      registry: git.freifunk-rhein-sieg.net
     username:
       from_secret: docker_username
     password:
       from_secret: docker_password
-- name: validate json good
-  image: fftdf/docker-json-validate
-  commands:
-    - jsonlint test_val.json
-- name: validate json bad
-  image: fftdf/docker-json-validate
-  commands:
-    - jsonlint test_not_val.json
+
+  validate_good:
+    image: fftdf/docker-json-validate
+    commands:
+      - jsonlint test_val.json
+      
+  validate_bad:
+    image: fftdf/docker-json-validate
+    commands:
+      - jsonlint test_not_val.json