chore: migrate all EpochInfos to EpochInfoV4 #5102

Job	Run time
Protobuf Backward Compatibility	10s
Cargo Nextest (Linux)	16m 30s
Cargo Nextest (Linux StatelessNet)	16m 21s
Lychee Lints	11s
Database Migration	9m 52s
Backward Compatibility	10m 40s
Cargo Nextest (Linux Nightly)	16m 33s
Genesis Changes	9m 26s
Cargo Nextest (MacOS)	28m 32s
Sanity Checks	6m 13s
Style	41s
Upgradability	10m 46s
RPC Schema	11m 23s
Cargo Audit	21s
Cargo Deny	31s
Cargo Clippy	8m 25s
Cargo Fmt	21s
Non-default Configuration Builds	1m 13s
Themis	42s
Unused Dependencies	6m 40s
Rust Doctests	11m 3s
Windows check for building public libraries	5m 52s
Upload Coverage	26s
Generate Coverage Artifact (unit, unit)	2m 41s
Generate Coverage Artifact (integration, unit integration)	3m 19s
	2h 58m 52s

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