Bump the S3 ingest worker

The S3 import worker fails on PDFs because it tries to load a JSON file that was not included in the package. This was fixed in arkindex/workers/import/s3!10 (merged)

arkindex/system_workers.yml

@@ -10,7 +10,7 @@ features:
         image: registry.gitlab.teklia.com/arkindex/workers/init-elements:0.1.1
         command: worker-init-elements
     s3_ingest:
-        image: registry.gitlab.teklia.com/arkindex/workers/import/s3:0.1.0
+        image: registry.gitlab.teklia.com/arkindex/workers/import/s3:0.2.0-rc2
     pdf_export:
         image: registry.gitlab.teklia.com/arkindex/workers/export:0.2.1-rc1
         command: worker-export-pdf