Merge pull request #1342 from spring-cloud/dependabot/github_actions/4.3.x/actions/checkout-6

Bump actions/checkout from 3 to 6

Author: olegz

.github/workflows/deploy-docs.yml

@@ -16,7 +16,7 @@ jobs:
     # if: github.repository_owner == 'spring-cloud'
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
         with:
           ref: docs-build
           fetch-depth: 1