chore(deps): update actions/checkout digest to b4ffde6 (#350)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action |
digest | `8ade135` -> `b4ffde6` |

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.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - uses: actions/setup-java@v3
         with:
           java-version: "14.x"