Update dependencies to get rid of the yanked deps (#4994)

* Initial attempt to upgrade hashbrown to latest to get rid of the crate warnings.

* Replace `.expect()` usage with use of `const`.

* Update ahash 0.7 as well

* Remove unsafe code.

* Update `lru` to 0.12 and fix release test errors.

* Set non-blocking socket

* Bump testcontainers to 0.15.

* Fix lint

---------

Co-authored-by: Michael Sproul <michael@sigmaprime.io>

beacon_node/lighthouse_network/src/discovery/mod.rs

@@ -35,6 +35,7 @@ pub use libp2p::{
 use lru::LruCache;
 use slog::{crit, debug, error, info, trace, warn};
 use ssz::Encode;
+use std::num::NonZeroUsize;
 use std::{
     collections::{HashMap, VecDeque},
     net::{IpAddr, SocketAddr},
@@ -49,6 +50,7 @@ use types::{EnrForkId, EthSpec};
 
 mod subnet_predicate;
 pub use subnet_predicate::subnet_predicate;
+use types::non_zero_usize::new_non_zero_usize;
 
 /// Local ENR storage filename.
 pub const ENR_FILENAME: &str = "enr.dat";
@@ -70,6 +72,8 @@ const MAX_SUBNETS_IN_QUERY: usize = 3;
 pub const FIND_NODE_QUERY_CLOSEST_PEERS: usize = 16;
 /// The threshold for updating `min_ttl` on a connected peer.
 const DURATION_DIFFERENCE: Duration = Duration::from_millis(1);
+/// The capacity of the Discovery ENR cache.
+const ENR_CACHE_CAPACITY: NonZeroUsize = new_non_zero_usize(50);
 
 /// A query has completed. This result contains a mapping of discovered peer IDs to the `min_ttl`
 /// of the peer if it is specified.
@@ -318,7 +322,7 @@ impl<TSpec: EthSpec> Discovery<TSpec> {
         };
 
         Ok(Self {
-            cached_enrs: LruCache::new(50),
+            cached_enrs: LruCache::new(ENR_CACHE_CAPACITY),
             network_globals,
             find_peer_active: false,
             queued_queries: VecDeque::with_capacity(10),