chore(deps): update actions/checkout digest to a5ac7e5 by renovate (#22293)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action |
digest | `0ad4b8f` -> `a5ac7e5` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
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### Configuration

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Automerge - At any time (no schedule defined).

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rebase/retry checkbox.

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This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zNjguOSIsInVwZGF0ZWRJblZlciI6IjM3LjM2OC45IiwidGFyZ2V0QnJhbmNoIjoibWFzdGVyIiwibGFiZWxzIjpbImF1dG9tZXJnZSJdfQ==-->

.github/workflows/pr-validate.yaml

@@ -17,7 +17,7 @@ jobs:
       addedOrModifiedCharts: ${{ steps.collect-changes.outputs.addedOrModifiedCharts }}
     steps:
       - name: Checkout
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
 
       - name: Collect changes
         id: collect-changes
@@ -58,7 +58,7 @@ jobs:
       head-commit-message: ${{ steps.get_head_commit_message.outputs.headCommitMsg }}
     steps:
       - name: Get repo
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: verbose head git commit message