ci: update checkout mechanism

Author: json-derulo

.github/workflows/verify-build.yml

@@ -11,8 +11,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
@@ -30,8 +28,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
@@ -49,8 +45,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
@@ -73,8 +67,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
@@ -92,8 +84,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm
@@ -111,8 +101,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
 
       - uses: pnpm/action-setup@v4
         name: Install pnpm