fix: correct trigger event of github actions

.github/workflows/build.yml

@@ -1,10 +1,8 @@
 name: Build
 
 on:
-    push:
-        branches:
-            - master
   pull_request:
+    types: [closed]
     branches:
       - master
 

.github/workflows/test.yml

@@ -1,15 +1,13 @@
 name: Test
 
 on:
+    pull_request:
+      branches:
+        - master
+      types: [opened, synchronize]
     push:
       branches:
         - feature
-    pull_request:
-        types:
-            - opened
-            - reopened
-        branches:
-            - master
 
 jobs:
     build: