fix: remove the assertion

It is not clear to me when this happens, but from how
the sync function is written there any reason to assert and fails.

Also, while start a new negotiation with a new peer, looks like pretty
common get a peer with a different height that maybe is the wrong one?

The crash that I see on my system is

```
thread '<unnamed>' panicked at 'assertion failed: filter_height <= block_height', /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/p2p/src/fsm/cbfmgr.rs:853:9
stack backtrace:
   0: rust_begin_unwind
             at /rustc/0599b6b931816ab46ab79072189075f543931cbd/library/std/src/panicking.rs:577:5
   1: core::panicking::panic_fmt
             at /rustc/0599b6b931816ab46ab79072189075f543931cbd/library/core/src/panicking.rs:67:14
   2: core::panicking::panic
             at /rustc/0599b6b931816ab46ab79072189075f543931cbd/library/core/src/panicking.rs:117:5
   3: nakamoto_p2p::fsm::cbfmgr::FilterManager<F,U,C>::sync
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/p2p/src/fsm/cbfmgr.rs:853:9
   4: nakamoto_p2p::fsm::cbfmgr::FilterManager<F,U,C>::idle
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/p2p/src/fsm/cbfmgr.rs:900:13
   5: nakamoto_p2p::fsm::cbfmgr::FilterManager<F,U,C>::initialize
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/p2p/src/fsm/cbfmgr.rs:329:9
   6: <nakamoto_p2p::fsm::StateMachine<T,F,P,C> as nakamoto_net::StateMachine>::initialize
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/p2p/src/fsm.rs:782:9
   7: <nakamoto_client::service::Service<T,F,P,C> as nakamoto_net::StateMachine>::initialize
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/client/src/service.rs:86:9
   8: <nakamoto_net_poll::reactor::Reactor<std::net::tcp::TcpStream,Id> as nakamoto_net::Reactor<Id>>::run
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/net/poll/src/reactor.rs:156:9
   9: nakamoto_client::client::ClientRunner<R>::run
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/client/src/client.rs:183:9
  10: nakamoto_client::client::Client<R>::run
             at /home/vincent/.cargo/git/checkouts/nakamoto-90f2d5c288bae2ec/17bbdab/client/src/client.rs:402:9
  11: satoshi_nakamoto::Nakamoto::new::{{closure}}
             at /home/vincent/Github/coffee/satoshi/satoshi-nakamoto/src/lib.rs:41:45
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
2023-04-06T16:54:52.509Z DEBUG   plugin-satoshi_plugin: Err(PluginError { code: -1, msg: \"command channel disconnected\", data: None })

```

Signed-off-by: Vincenzo Palazzo <[email protected]>

p2p/src/fsm/cbfmgr.rs

@@ -847,7 +847,12 @@ impl<F: Filters, U: Wire<Event> + SetTimer + Disconnect, C: Clock> FilterManager
         let filter_height = self.filters.height();
         let block_height = tree.height();
 
-        assert!(filter_height <= block_height);
+        if filter_height > block_height {
+            log::info!(
+                "filter height (`{filter_height}`) grater than the block height (`{block_height}`)"
+            );
+            return;
+        }
 
         // Don't start syncing filter headers until block headers are synced passed the last
         // checkpoint. BIP 157 states that we should sync the full block header chain before