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

Author: renovate[bot]

.github/workflows/nodejs.yml

@@ -13,7 +13,7 @@ jobs:
         node-version: [14, 15]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v2

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         node-version: [14]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v2