chore(deps): Update actions/checkout action to v5 (#270)

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>

---

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any time (no schedule defined).

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rebase/retry checkbox.

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

---

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this box

---

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.github/workflows/cd-dgraph-js.yml

@@ -29,13 +29,13 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
     steps:
       - name: Checkout dgraph-js repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: dgraph-js
           repository: hypermodeinc/dgraph-js
           ref: ${{ github.event.inputs.releasetag }}
       - name: Checkout dgraph repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: dgraph
           repository: hypermodeinc/dgraph
@@ -65,7 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout dgraph-js repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup node.js
         uses: actions/setup-node@v4
         with:

.github/workflows/ci-dgraph-js.yml

@@ -23,13 +23,13 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
     steps:
       - name: Checkout dgraph-js repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: dgraph-js
           repository: hypermodeinc/dgraph-js
           ref: ${{ github.ref }}
       - name: Checkout dgraph repo
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: dgraph
           repository: hypermodeinc/dgraph