ci: reduce benchmark false positives

Author: nevergiveupcpp

.github/workflows/ci.yml

@@ -106,8 +106,8 @@ jobs:
           output-file-path: ${{ env.BENCHMARK_BIN_DIR }}/result.json
           github-token: ${{ secrets.GITHUB_TOKEN }}
           auto-push: true
-          comment-on-alert: true
-          alert-threshold: '150%'
+          comment-on-alert: false
+          alert-threshold: '200%'
           fail-on-alert: true
 
   clang-format: