Fully check whether the name is a Pubkey to fix misc test errors

Using instruction names that are 43 or 44 in length causes them to not get converted to camelCase in IDL type.

cli/src/rust_template.rs

@@ -18,6 +18,7 @@ use std::{
     io::Write as _,
     path::Path,
     process::Stdio,
+    str::FromStr,
 };
 
 /// Program initialization template
@@ -241,7 +242,7 @@ pub fn idl_ts(idl: &Idl) -> Result<String> {
             let name = cur.get(1).unwrap().as_str();
 
             // Do not modify pubkeys
-            if matches!(name.len(), 43 | 44) {
+            if Pubkey::from_str(name).is_ok() {
                 return acc;
             }