chore(deps): update actions/checkout action to v3 (#200)

Author: renovate-bot

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         node: [ 10, 12, 14, 15, 16]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}
@@ -25,7 +25,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v2
         with:
           node-version: 14