Several changes

* Fix state cache pruning of finalized state from block map
* Update to latest `milhouse`
* Check beacon state diffs in EF tests

beacon_node/store/src/errors.rs

@@ -47,8 +47,7 @@ pub enum Error {
     BlockReplayError(BlockReplayError),
     #[cfg(feature = "milhouse")]
     MilhouseError(milhouse::Error),
-    Bincode(Box<bincode::ErrorKind>),
-    FlateCompression(std::io::Error),
+    Compression(std::io::Error),
 }
 
 pub trait HandleUnavailable<T> {
@@ -114,12 +113,6 @@ impl From<BlockReplayError> for Error {
     }
 }
 
-impl From<Box<bincode::ErrorKind>> for Error {
-    fn from(e: Box<bincode::ErrorKind>) -> Self {
-        Self::Bincode(e)
-    }
-}
-
 #[derive(Debug)]
 pub struct DBError {
     pub message: String,