[CI] Stop leaving spammy comments for benchmarks (#2025)

Author: giordano

.github/workflows/build.yml

@@ -265,7 +265,7 @@ jobs:
           output-file-path: combined_results.json
           benchmark-data-dir-path: "benchmarks"
           github-token: ${{ secrets.GITHUB_TOKEN }}
-          comment-always: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
+          comment-always: false
           summary-always: ${{ github.event.pull_request.head.repo.full_name == github.repository }}
           alert-threshold: "150%"
           fail-on-alert: false