Fix trailing whitespace lint error in parser.bench.mjs

Co-authored-by: NullVoxPopuli <[email protected]>

Author: Copilot

tests/parser.bench.mjs

@@ -115,7 +115,7 @@ for (const { type, ext, experimentParse, controlParse } of PARSERS) {
   for (const size of SIZES) {
     const code = FIXTURES[type][size];
     const opts = { ...PARSE_OPTIONS, filePath: `${size}${ext}` };
-    
+
     // Force a full GC before each benchmark group to reduce GC-triggered variance
     globalThis.gc?.();