chore(deps): update actions/checkout action to v3 (#938)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

.github/workflows/snapshot.yml

@@ -15,7 +15,7 @@ jobs:
           check-latest: true
 
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           ref: ${{ github.head_ref }}