⬆️ Update actions/setup-go action to v4 (#36)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/setup-go](https://togithub.com/actions/setup-go) | action |
major | `v3` -> `v4` |

---

### Release Notes

<details>
<summary>actions/setup-go</summary>

### [`v4`](https://togithub.com/actions/setup-go/compare/v3...v4)

[Compare Source](https://togithub.com/actions/setup-go/compare/v3...v4)

</details>

---

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---

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.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@24cb9080177205b6e8c946b17badbe402adc938f # v3
       - name: Setup Go
-        uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3
+        uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9 # v4
         with:
           go-version-file: ${{github.workspace}}/go.mod
           cache: true