[Epoch Sync] Make epoch sync happen before header sync on AwaitingPeers. #8671

Job	Run time
Cargo Deny	31s
Cargo Audit	21s
Cargo Nextest (Linux)	10m 28s
Cargo Nextest (Linux Nightly)	11m 0s
Cargo Clippy	8m 46s
Cargo Fmt	20s
Themis	38s
Unused Dependencies	7m 4s
Non-default Configuration Builds	1m 19s
Protobuf Backward Compatibility	11s
Protocol Schema	13m 27s
Backward Compatibility	11m 21s
Rust Doctests	11m 48s
Database Migration	11m 38s
Genesis Changes	10m 20s
Sanity Checks	6m 14s
Style	46s
Upgradability	11m 37s
Windows check for building public libraries	4m 39s
Generate Coverage Artifact (unit, unit)	2m 53s
Upload Coverage	24s
	2h 5m 45s

Provide feedback