Run benchmarks only on PR (#77)

Author: shravanngoswamii

.github/workflows/Benchmark.yml

@@ -1,8 +1,5 @@
 name: Benchmarks
 on:
-  push:
-    branches:
-      - master
   pull_request:
     branches:
       - master
@@ -52,4 +49,4 @@ jobs:
           alert-threshold: "200%"
           fail-on-alert: true
           benchmark-data-dir-path: benchmarks
-          auto-push: ${{ github.event_name != 'pull_request' }}
+          auto-push: false