Update All major dependencies (major) (#74)

This PR contains the following updates:

| Package | Type | Update | Change | OpenSSF |
|---|---|---|---|---|
|
[actions/download-artifact](https://redirect.github.com/actions/download-artifact)
| action | major | `v5` -> `v6` | [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/actions/download-artifact/badge)](https://securityscorecards.dev/viewer/?uri=github.com/actions/download-artifact)
|
|
[actions/upload-artifact](https://redirect.github.com/actions/upload-artifact)
| action | major | `v4` -> `v5` | [![OpenSSF
Scorecard](https://api.securityscorecards.dev/projects/github.com/actions/upload-artifact/badge)](https://securityscorecards.dev/viewer/?uri=github.com/actions/upload-artifact)
|

---

### Release Notes

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

###
[`v6`](https://redirect.github.com/actions/download-artifact/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v5...v6)

</details>

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

###
[`v5`](https://redirect.github.com/actions/upload-artifact/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/upload-artifact/compare/v4...v5)

</details>

---

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.github/workflows/publishing.yaml

@@ -16,7 +16,7 @@ jobs:
         run: uv python install 3.14
       - name: Build wheel and source tarball
         run: uv build
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: python-package-distributions
           path: dist/
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: python-package-distributions
           path: dist/
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           name: python-package-distributions
           path: dist/