chore(deps): update actions/checkout action to v3 (#3891)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://togithub.com/actions/checkout) | action |
major | `v2` -> `v3` |

---

### Release Notes

<details>
<summary>actions/checkout</summary>

###
[`v3`](https://togithub.com/actions/checkout/blob/HEAD/CHANGELOG.md#v352)

[Compare Source](https://togithub.com/actions/checkout/compare/v2...v3)

- [Fix api endpoint for
GHES](https://togithub.com/actions/checkout/pull/1289)

</details>

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.github/workflows/reset_heroku.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Install Heroku CLI
         uses: akhileshns/heroku-deploy@v3.12.14