Switch default log level for mocknet to INFO #4124

Job	Run time
Database Migration	9m 34s
Cargo Nextest (Linux)	16m 35s
Cargo Nextest (Linux StatelessNet)	16m 42s
Cargo Nextest (Linux Nightly)	16m 9s
Cargo Nextest (MacOS)	10m 58s
Cargo Fmt	21s
Rust Doctests	11m 36s
Cargo Clippy	8m 30s
Lychee Lints	8s
Protobuf Backward Compatibility	9s
Backward Compatibility	11m 3s
Genesis Changes	9m 15s
Sanity Checks	6m 8s
Style	39s
Upgradability	10m 57s
RPC Schema	11m 12s
Cargo Audit	17s
Non-default Configuration Builds	1m 39s
Themis	42s
Unused Dependencies	6m 55s
Cargo Deny	27s
Upload Coverage	25s
Generate Coverage Artifact (unit, unit)	2m 40s
Generate Coverage Artifact (integration, unit integration)	3m 24s
	2h 36m 25s

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