Remove some additional manual iterator matches (#5482)

## Summary

I've done a few of these PRs, I thought I'd caught them all, but missed
this pattern.

crates/ruff_python_stdlib/src/keyword.rs

@@ -1,7 +1,41 @@
 // See: https://github.com/python/cpython/blob/9d692841691590c25e6cf5b2250a594d3bf54825/Lib/keyword.py#L18
-pub(crate) const KWLIST: [&str; 35] = [
-    "False", "None", "True", "and", "as", "assert", "async", "await", "break", "class", "continue",
-    "def", "del", "elif", "else", "except", "finally", "for", "from", "global", "if", "import",
-    "in", "is", "lambda", "nonlocal", "not", "or", "pass", "raise", "return", "try", "while",
-    "with", "yield",
-];
+pub(crate) fn is_keyword(name: &str) -> bool {
+    matches!(
+        name,
+        "False"
+            | "None"
+            | "True"
+            | "and"
+            | "as"
+            | "assert"
+            | "async"
+            | "await"
+            | "break"
+            | "class"
+            | "continue"
+            | "def"
+            | "del"
+            | "elif"
+            | "else"
+            | "except"
+            | "finally"
+            | "for"
+            | "from"
+            | "global"
+            | "if"
+            | "import"
+            | "in"
+            | "is"
+            | "lambda"
+            | "nonlocal"
+            | "not"
+            | "or"
+            | "pass"
+            | "raise"
+            | "return"
+            | "try"
+            | "while"
+            | "with"
+            | "yield",
+    )
+}