Remove syn version 1 (#8678)

#8547


  This updates a few of our crates to remove the older `syn 1` crate.

This updates:
- `criterion` -> `0.8`
- `itertools` -> `0.14`

And also certain `sigp` crates:
- `xdelta3` -> [`fe39066`](fe3906605c)
- `superstruct` -> `0.10.1`
- `ethereum_ssz` -> `0.10.1`
- `tree_hash` -> `0.12.1`
- `metastruct` -> `0.1.4`
- `context_deserialize` -> `0.2.1`
- `compare_fields` -> `0.1.1`


Co-Authored-By: Mac L <mjladson@pm.me>

beacon_node/beacon_chain/benches/benches.rs

@@ -1,8 +1,9 @@
+use std::hint::black_box;
 use std::sync::Arc;
 
 use beacon_chain::kzg_utils::{blobs_to_data_column_sidecars, reconstruct_data_columns};
 use beacon_chain::test_utils::get_kzg;
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
+use criterion::{Criterion, criterion_group, criterion_main};
 
 use bls::Signature;
 use kzg::{KzgCommitment, KzgProof};