Update actions/checkout action to v3

Author: renovate-bot

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
         node-version: [14.x, 16.x]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v2
         with:

.github/workflows/deploy.yml

@@ -17,7 +17,7 @@ jobs:
         node-version: [16.x]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v2
         with: