ci: disable test building of pyinstaller upon push

.github/pyinstaller/hooks/hook-smda.py

@@ -1,4 +1,5 @@
 # Copyright (C) 2020 FireEye, Inc. All Rights Reserved.
 import PyInstaller.utils.hooks
 
+# ref: https://groups.google.com/g/pyinstaller/c/amWi0-66uZI/m/miPoKfWjBAAJ
 binaries = PyInstaller.utils.hooks.collect_dynamic_libs("capstone")

.github/workflows/build.yml

@@ -1,8 +1,6 @@
 name: build
 
 on:
-  push:
-    branches: ["feature-py3-pyinstaller"]
   release:
     types: [edited, published]