chore(deps): update actions/checkout digest (#427)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action |
digest | `0ad4b8f` -> `a5ac7e5` |
| actions/checkout | action | digest | `a5ac7e5` -> `b1ec302` |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the
rebase/retry checkbox.

👻 **Immortal**: This PR will be recreated if closed unmerged. Get
[config help](https://togithub.com/renovatebot/renovate/discussions) if
that's undesired.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

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

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi4xMDkuNCIsInVwZGF0ZWRJblZlciI6IjM2LjEwOS40IiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9-->

Co-authored-by: Self-hosted Renovate Bot <361546+cgrindel-self-hosted-renovate[bot]@users.noreply.github.enterprise.com>

.github/workflows/ci.yml

@@ -192,7 +192,7 @@ jobs:
     env:
       CC: clang
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+      - uses: actions/checkout@b1ec3021b8fa02164da82ca1557d017d83b0e179
       - uses: cgrindel/gha_set_up_bazel@v1
         with:
           bazel_disk_cache_dir: ""
@@ -218,7 +218,7 @@ jobs:
           - ubuntu-22.04
     runs-on: ${{ matrix.runner }}
     steps:
-      - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+      - uses: actions/checkout@b1ec3021b8fa02164da82ca1557d017d83b0e179
       - uses: cgrindel/gha_set_up_bazel@v1
         with:
           bazel_disk_cache_dir: ""

.github/workflows/create_release.yml

@@ -33,7 +33,7 @@ jobs:
       CC: clang
 
     steps:
-    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
+    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4
     - uses: cgrindel/gha_set_up_bazel@v1
       with:
         repo_name: bazel-starlib