fix CI in leakybuckets

pkg/leakybucket/tests/simple-trigger-external-data/bucket.yaml

@@ -4,6 +4,7 @@ name: test/simple-trigger
 data:
   - source_url: https://invalid.com/test.list
     dest_file: ./simple_patterns.txt
+    type: string
 description: "Simple trigger with external data"
 filter: "evt.Line.Labels.type =='testlog' && evt.Parsed.tainted_data in File('./simple_patterns.txt')"
 groupby: evt.Meta.source_ip