ci(action): update actions/checkout action to v4 (#20)

Author: renovate[bot]

.github/workflows/release.yml

@@ -8,7 +8,7 @@ jobs:
     name: release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
           node-version: lts/*

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
           - "12"
           - "14"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Use Node.js ${{ matrix.node_version }}
         uses: actions/setup-node@v3
         with: