chore(deps): update actions/checkout action to v4.3.1

Author: crossplane-renovate[bot]

.github/workflows/renovate.yml

@@ -25,7 +25,7 @@ jobs:
       !github.event.pull_request.head.repo.fork
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
 
       # Don't waste time starting Renovate if JSON is invalid
       - name: Validate Renovate JSON