with the release of rust 1.67, let's bump to 1.66.1 (#7866)

# Description

This PR bumps the required rust version to 1.66.1.

# User-Facing Changes


# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

crates/nu-table/src/table.rs

@@ -574,14 +574,6 @@ impl Peaker for PriorityMax {
 
     fn peak(&mut self, _: &[usize], widths: &[usize]) -> Option<usize> {
         let col = (0..widths.len()).rev().max_by_key(|&i| widths[i]);
-        if let Some(col) = col {
-            if widths[col] == 0 {
-                None
-            } else {
-                Some(col)
-            }
-        } else {
-            None
-        }
+        col.filter(|&col| widths[col] != 0)
     }
 }