chore(deps): update actions/checkout action to v4.2.1 (#54)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | patch | `v4.2.0` -> `v4.2.1` |

---

### Release Notes

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

###
[`v4.2.1`](https://redirect.github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v421)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v4.2.0...v4.2.1)

- Check out other refs/\* by commit if provided, fall back to ref by
[@&#8203;orhantoy](https://redirect.github.com/orhantoy) in
[https://github.com/actions/checkout/pull/1924](https://redirect.github.com/actions/checkout/pull/1924)

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

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

---

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.github/workflows/checks.yml

@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout Repository
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
@@ -35,7 +35,7 @@ jobs:
       SUBGRAPH_NAME: foo-bar
     steps:
       - name: Checkout Repository
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:

.github/workflows/deploy.yml

@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout Repository
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with: