Fix detected shredder sources for tables not in shredder config

[BenWu]

Description

Currently reading from the wrong delete source set so all the detected_sources here have the same wrong value

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[dataops-ci-bot]

Integration report for "Fix detected shredder sources for tables not in shredder config"

sql.diff

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diff -bur --no-dereference --new-file /tmp/workspace/main-generated-sql/sql/moz-fx-data-shared-prod/monitoring_derived/shredder_targets_v1/query.py /tmp/workspace/generated-sql/sql/moz-fx-data-shared-prod/monitoring_derived/shredder_targets_v1/query.py
--- /tmp/workspace/main-generated-sql/sql/moz-fx-data-shared-prod/monitoring_derived/shredder_targets_v1/query.py	2024-10-18 20:04:45.000000000 +0000
+++ /tmp/workspace/generated-sql/sql/moz-fx-data-shared-prod/monitoring_derived/shredder_targets_v1/query.py	2024-10-18 20:04:34.000000000 +0000
@@ -281,9 +281,9 @@
                 "table_id": table,
                 "current_sources": [],
                 "detected_sources": [
-                    delete_source_to_dict(detected) for detected in detected_deletions
+                    delete_source_to_dict(detected) for detected in srcs
                 ],
-                "matching_sources": False,
+                "matching_sources": len(srcs) == 0,
             }
         )
 

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