Merge pull request #611 from btat/bump-action/checkout

Bump actions/checkout. v2 uses deprecated Node 12

.github/workflows/deploy.yml

@@ -10,7 +10,7 @@ jobs:
     name: Deploy to GitHub Pages
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v3

.github/workflows/test-deploy.yml

@@ -10,7 +10,7 @@ jobs:
     name: Test deployment
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
           node-version: 18