fix clippy (#10659)

This pr fix clippy warnings in latest clippy version(1.72.0):

Unfortunally it's not easy to handle for [try
fold](https://rust-lang.github.io/rust-clippy/master/index.html#/manual_try_fold)
warning in `start command`

Refer to known issue:
> This lint doesn’t take into account whether a function does something
on the failure case, i.e., whether short-circuiting will affect
behavior. Refactoring to try_fold is not desirable in those cases.

That's the case for our code, which does something on the failure case.

So this pr is making a little refactor on `try_commands`.

crates/nu-command/src/strings/encode_decode/base64.rs

@@ -107,8 +107,7 @@ fn action(
         Value::Error { .. } => input.clone(),
         Value::Binary { val, .. } => match base64_config.action_type {
             ActionType::Encode => {
-                let mut enc_vec = Vec::new();
-                enc_vec.resize(val.len() * 4 / 3 + 4, 0);
+                let mut enc_vec = vec![0; val.len() * 4 / 3 + 4];
                 let bytes_written = match base64_engine.encode_slice(val, &mut enc_vec) {
                     Ok(bytes_written) => bytes_written,
                     Err(err) => {