chore(deps): update actions/download-artifact action to v8 (#160)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/download-artifact](https://redirect.github.com/actions/download-artifact)
| action | major | `v7` → `v8` |

---

### Release Notes

<details>
<summary>actions/download-artifact (actions/download-artifact)</summary>

###
[`v8`](https://redirect.github.com/actions/download-artifact/compare/v7...v8)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v7...v8)

</details>

---

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are satisfied.

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rebase/retry checkbox.

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---

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---

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.github/workflows/publishing.yaml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: python-package-distributions
           path: dist/
@@ -55,7 +55,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v7
+      - uses: actions/download-artifact@v8
         with:
           name: python-package-distributions
           path: dist/