Add defer collector.Close() (#2351)

common/etl/collector.go

common/etl/dataprovider.go

common/etl/etl.go

common/etl/etl_test.go

eth/stagedsync/stage_call_traces.go

eth/stagedsync/stage_execute.go

eth/stagedsync/stage_indexes.go

eth/stagedsync/stage_interhashes.go

eth/stagedsync/stage_log_index.go

eth/stagedsync/stage_senders.go

eth/stagedsync/stage_txlookup.go

turbo/snapshotsync/bodies_snapshot.go