Don't run Test Erlang Git Master workflow on every push

(cherry picked from commit 08cf1f0)

Author: HoloRin

.github/workflows/test-erlang-git.yaml

@@ -3,7 +3,6 @@ on:
   schedule:
   - cron: '0 2 * * *'
   workflow_dispatch:
-  push:
 jobs:
   test-erlang-git:
     name: Test (Erlang Git Master)