Bump actions/download-artifact from 5 to 8 (#231)

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

Author: dependabot[bot]

.github/workflows/build.yaml

@@ -59,7 +59,7 @@ jobs:
 
       - name: Download frontend build
         if: github.repository == 'llamara-ai/llamara-distro'
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v8
         with:
           name: vite-dist
           path: src/main/resources/META-INF/resources
@@ -169,7 +169,7 @@ jobs:
             org.opencontainers.image.authors=Contributors to the LLAMARA AI project
 
       - name: Download packaged application
-        uses: actions/download-artifact@v5
+        uses: actions/download-artifact@v8
         with:
           name: quarkus-app
           path: target/quarkus-app