ci: fix when the block replay workflow is run

Author: gballet

.github/workflows/block_replay.yml

@@ -3,15 +3,11 @@ name: Block replay test
 on:
   push:
     branches: [ master ]
-  workflow_run:   
-    workflows: [Go lint and test]
-    types: [completed]
-  workflow_dispatch:   
 
 jobs:
   replay:
     runs-on: self-hosted
-    if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    if: github.event.type == 'push' && github.event.ref == 'refs/head/master'
     steps:
     - uses: actions/checkout@v2
     - name: Set up Go