chore(actions)(deps): bump actions/download-artifact from 3 to 4

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/dart.yml

@@ -52,7 +52,7 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Download all artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
 
     - name: Create Release
       uses: softprops/action-gh-release@v1

.github/workflows/docs-deployment.yml

@@ -106,7 +106,7 @@ jobs:
 
     steps:
       - name: Download documentation
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: documentation-preview
           path: site