Check common case first in external rule check

Author: maxmynter

crates/ruff_linter/src/rules/ruff/rules/invalid_rule_code.rs

@@ -63,8 +63,8 @@ pub(crate) fn invalid_noqa_code(
 
         for code in directive.iter() {
             let code_str = code.as_str();
-            if external.iter().any(|ext| code_str.starts_with(ext))
-                || Rule::from_code(code.as_str()).is_ok()
+            if Rule::from_code(code.as_str()).is_ok()
+                || external.iter().any(|ext| code_str.starts_with(ext))
             {
                 all_invalid = false;
             } else {