Merge pull request #10 from golift/renovate/actions-checkout-4.x

Update actions/checkout action to v4

Author: davidnewhall

.github/workflows/codetests.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/setup-go@v4
         with:
           go-version: 1.19
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with: