build(github-actions): Bump actions/checkout action to v5 (#343)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v4` -> `v5` |

---

### Release Notes

<details>
<summary>actions/checkout (actions/checkout)</summary>

### [`v5`](https://redirect.github.com/actions/checkout/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v4...v5)

</details>

---

### Configuration

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Monday ( * 8-16 * * 1 ) (UTC), Automerge - At any time (no schedule
defined).

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

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again.

---

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

---

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.github/workflows/deploy.yml

@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Setup Node.js environment
       uses: actions/setup-node@v4

.github/workflows/github-ci.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Use Node.js LTS 20.11.0
       uses: actions/setup-node@v4

.github/workflows/reuse-compliance.yml

@@ -14,6 +14,6 @@ jobs:
     name: Compliance Check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Execute REUSE Compliance Check
       uses: fsfe/reuse-action@v5