chore: bump GitHub Actions to v6 (checkout and setup-node)

Author: jiten-singh-shahi

.github/workflows/ci.yml

@@ -14,10 +14,10 @@ jobs:
         node-version: [20]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ matrix.node-version }}
           cache: npm

.github/workflows/release.yml

@@ -30,10 +30,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Setup Node.js
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: 20
           registry-url: https://registry.npmjs.org