Clippy 1.67 (#3916)

## Proposed Changes

Clippy 1.67.0 put us on blast for the size of some of our errors, most of them written by me ( 👀 ). This PR shrinks the size of `BeaconChainError` by dropping some extraneous info and boxing an inner error which should only occur infrequently anyway.

For the `AttestationSlashInfo` and `BlockSlashInfo` I opted to ignore the lint as they are always used in a `Result<A, Info>` where `A` is a similar size. This means they don't bloat the size of the `Result`, so it's a bit annoying for Clippy to report this as an issue.

I also chose to ignore `clippy::uninlined-format-args` because I think the benefit-to-churn ratio is too low. E.g. sometimes we have long identifiers in `format!` args and IMO the non-inlined form is easier to read:

```rust
// I prefer this...
format!(
    "{} did {} to {}",
    REALLY_LONG_CONSTANT_NAME,
    ANOTHER_REALLY_LONG_CONSTANT_NAME,
    regular_long_identifier_name
);
  
// To this
format!("{REALLY_LONG_CONSTANT_NAME} did {ANOTHER_REALLY_LONG_CONSTANT_NAME} to {regular_long_identifier_name}");
```

I tried generating an automatic diff with `cargo clippy --fix` but it came out at:

```
250 files changed, 1209 insertions(+), 1469 deletions(-)
```

Which seems like a bad idea when we'd have to back-merge it to `capella` and `eip4844` 😱

common/compare_fields/src/lib.rs

@@ -115,11 +115,7 @@ impl Comparison {
         let mut children = vec![];
 
         for i in 0..std::cmp::max(a.len(), b.len()) {
-            children.push(FieldComparison::new(
-                format!("{:}", i),
-                &a.get(i),
-                &b.get(i),
-            ));
+            children.push(FieldComparison::new(format!("{i}"), &a.get(i), &b.get(i)));
         }
 
         Self::parent(field_name, a == b, children)
@@ -164,8 +160,8 @@ impl FieldComparison {
         Self {
             field_name,
             equal: a == b,
-            a: format!("{:?}", a),
-            b: format!("{:?}", b),
+            a: format!("{a:?}"),
+            b: format!("{b:?}"),
         }
     }