chore(github-action): update actions/checkout digest to 08eba0b (#38260)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | digest | `11bd719` -> `08eba0b` |

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### Configuration

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Automerge - At any time (no schedule defined).

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.github/workflows/schedule-sync-labels.yaml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
         with:
           token: ${{ secrets.BOT_TOKEN }}