chore(deps): bump actions/download-artifact from 4 to 5

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] <support@github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -74,7 +74,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download all artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
 
       - name: Move artifacts
         run: for dir in runtipi-cli-linux-*; do mv "$dir/runtipi-cli" "${dir}.cli" && rm -rf "$dir" && mv "${dir}.cli" "$dir"; done

.github/workflows/nightly.yml

@@ -70,7 +70,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download all artifacts
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
 
       - name: Move artifacts
         run: for dir in runtipi-cli-linux-*; do mv "$dir/runtipi-cli" "${dir}.cli" && rm -rf "$dir" && mv "${dir}.cli" "$dir"; done