Bump actions/checkout to v3

.github/workflows/checks.yml

@@ -5,7 +5,7 @@ jobs:
   validation:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           ref: ${{ github.event.pull_request.head.sha }}
           fetch-depth: 0

.github/workflows/publish-records.yml

@@ -11,7 +11,7 @@ jobs:
     if: github.repository == 'is-a-dev/register'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: borales/actions-yarn@v2.0.0
         with:
           cmd: install --ignore-engines