chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     name: Node.js ${{ matrix.node }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v2.4.1
         with:
           version: 6.24.4

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
     name: Node.js ${{ matrix.node }}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: pnpm/action-setup@v2.4.1
         with:
           version: 6.24.4