Fix `roll_time` and `auto_commit` settings for `FileSink` (#859) #301

Job	Run time
clippy	1m 42s
build	2m 53s
fmt	9s
tests (coverage-map)	1m 10s
tests (coverage-point-calculator)	1m 12s
tests (ingest)	2m 0s
tests (reward-scheduler)	1m 9s
tests (task-manager)	1m 28s
tests-postgres (boost-manager)	3m 9s
tests-postgres (file-store)	1m 59s
tests-postgres (iot-config)	2m 32s
tests-postgres (iot-packet-verifier)	4m 11s
tests-postgres (iot-verifier)	2m 30s
tests-postgres (mobile-config)	2m 16s
tests-postgres (mobile-packet-verifier)	3m 0s
tests-postgres (mobile-verifier)	2m 59s
build-release	15m 19s
	49m 38s

Provide feedback