Update workflow

.github/workflows/build.yml

@@ -1,9 +1,12 @@
 name: Build
 
 on:
-  merge_group:
+  push:
+    branches:
+      - main
   pull_request:
-    types: [opened, synchronize, reopened, closed]
+    branches:
+      - main
 
 jobs:
   build:
@@ -12,12 +15,12 @@ jobs:
       image: aemiii91/miyoomini-toolchain:latest
       options: --user root
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v4
-      with:
-        submodules: recursive
-    - name: Build project
-      shell: bash
-      run: |
-        source /root/.bashrc
-        make build
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Build project
+        shell: bash
+        run: |
+          source /root/.bashrc
+          make build