Bump actions/download-artifact from 2 to 3

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 3.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v3)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/build-ci.yml

@@ -59,7 +59,7 @@ jobs:
     needs: [build]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: raw-build-output
       - uses: softprops/action-gh-release@v1
@@ -85,7 +85,7 @@ jobs:
       run: sudo apt update
 
     # Get artifacts from CI build
-    - uses: actions/download-artifact@v2
+    - uses: actions/download-artifact@v3
       with:
         name: raw-build-output
 
@@ -113,7 +113,7 @@ jobs:
     needs: [build-image]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: built-image
       - uses: softprops/action-gh-release@v1