ci: checkout before using local PR check action

.github/workflows/pr-checks.yml

@@ -14,6 +14,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Setup Node.js and pnpm
         uses: ./.github/actions/setup-node-pnpm
 
@@ -25,6 +28,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Setup Node.js and pnpm
         uses: ./.github/actions/setup-node-pnpm
 
@@ -36,6 +42,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Setup Node.js and pnpm
         uses: ./.github/actions/setup-node-pnpm
 
@@ -54,6 +63,9 @@ jobs:
         shard: [1, 2, 3]
 
     steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
       - name: Setup Node.js and pnpm
         uses: ./.github/actions/setup-node-pnpm