Fix push

.github/workflows/bench.yml

@@ -16,6 +16,8 @@ jobs:
         go-version: 1.15.x
     - name: Checkout code
       uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
     - name: Build garble
       run: go build -o garble
     - name: Checkout staticcheck