Update pipeline script to match best practices

.woodpecker.yml

@@ -113,8 +113,12 @@ steps:
                     done
                 - echo "Cleanup completed"
 
-trigger:
+# trigger:
-    branch:
+#     branch:
-        - master
+#         - master
-    event:
+#     event:
-        - push
+#         - push
+
+when:
+  - branch: master
+    event: push