Fix benchmark CI command - remove invalid --noplot option

The --noplot option was being passed through -- which routes to the
wrong binary. Removed the option since criterion will use plotters
backend anyway when gnuplot isn't available.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: konard

.github/workflows/rust.yml

@@ -73,7 +73,7 @@ jobs:
             ${{ runner.os }}-cargo-bench-
 
       - name: Run benchmarks
-        run: cargo bench -- --noplot
+        run: cargo bench
         env:
           BENCHMARK_LINK_COUNT: 1000
           BACKGROUND_LINK_COUNT: 3000