Update Solana workspace to use `helium-lib` #414

Job	Run time
build	5m 9s
clippy	1m 48s
fmt	14s
tests (coverage-map)	1m 21s
tests (coverage-point-calculator)	1m 49s
tests (ingest)	1m 59s
tests (reward-scheduler)	55s
tests (task-manager)	1m 2s
tests-postgres (boost-manager)	2m 36s
tests-postgres (file-store)	2m 17s
tests-postgres (iot-config)	2m 49s
tests-postgres (iot-packet-verifier)	3m 44s
tests-postgres (iot-verifier)	2m 58s
tests-postgres (mobile-config)	2m 32s
tests-postgres (mobile-packet-verifier)	2m 51s
tests-postgres (mobile-verifier)	3m 9s
build-release	0s
	37m 13s

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