Bump actions/download-artifact from 4 to 5 (#4221)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/packages.yml

@@ -442,7 +442,7 @@ jobs:
 
     steps:
     - name: Download all artifacts
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
 
     - name: Create release
       id: create_release

.github/workflows/upload-to-itch.yml

@@ -43,7 +43,7 @@ jobs:
     steps:
     - name: Download artifact
       id: download
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v5
       with:
         name: ${{ matrix.artifact }}
         path: upload