fix: correct trigger event of github actions

.github/workflows/build.yml

@@ -1,12 +1,10 @@
 name: Build
 
 on:
-    push:
-        branches:
-            - master
-    pull_request:
-        branches:
-            - master
+  pull_request:
+    types: [closed]
+    branches:
+      - master
 
 jobs:
     build:

.github/workflows/test.yml

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