ci(github-action)!: Update actions/checkout action ( v3 → v4 ) (#9)

This PR contains the following updates:

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

---

### Release Notes

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

###
[`v4`](https://github.com/actions/checkout/blob/HEAD/CHANGELOG.md#v417)

[Compare Source](https://github.com/actions/checkout/compare/v3...v4)

- Bump the minor-npm-dependencies group across 1 directory with 4
updates by [@&#8203;dependabot](https://github.com/dependabot) in
[actions/checkout#1739
- Bump actions/checkout from 3 to 4 by
[@&#8203;dependabot](https://github.com/dependabot) in
[actions/checkout#1697
- Check out other refs/\* by commit by
[@&#8203;orhantoy](https://github.com/orhantoy) in
[actions/checkout#1774
- Pin actions/checkout's own workflows to a known, good, stable version.
by [@&#8203;jww3](https://github.com/jww3) in
[actions/checkout#1776

</details>

---

### Configuration

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are satisfied.

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rebase/retry checkbox.

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---

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---

This PR has been generated by [Renovate
Bot](https://github.com/renovatebot/renovate).

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.github/workflows/charts-publish-oci.yaml

@@ -15,7 +15,7 @@ jobs:
       packages: write
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/mirror.yaml

@@ -8,7 +8,7 @@ jobs:
   mirror:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: yesolutions/mirror-action@v0.6.0