Update actions/checkout usages to v4

Author: aryaemami59

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Use Node ${{ matrix.node }}
         uses: actions/setup-node@v2
@@ -61,7 +61,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Use node ${{ matrix.node }}
         uses: actions/setup-node@v2
@@ -92,7 +92,7 @@ jobs:
         example: ['cra4', 'cra5', 'next', 'vite', 'node-standard', 'node-esm']
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Use node ${{ matrix.node }}
         uses: actions/setup-node@v2
@@ -146,7 +146,7 @@ jobs:
         node: ['20.x']
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - uses: actions/download-artifact@v3
         with: