ci: download native packages in a single step via pattern matching

Collapse the three per-OS 'native-*' download-artifact steps into one step
using 'pattern: native-*' with 'merge-multiple: true'. The action fetches
the matched artifacts concurrently and extracts them flat into the same
path, preserving the previous layout. Behavior-preserving.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: arturcic

.github/actions/artifacts-restore/action.yml

@@ -5,21 +5,10 @@ runs:
   using: 'composite'
   steps:
     - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      name: Download native linux packages
+      name: Download native packages
       with:
-        name: native-Linux
-        path: ${{ github.workspace }}/artifacts/packages/native
-
-    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      name: Download native windows packages
-      with:
-        name: native-Windows
-        path: ${{ github.workspace }}/artifacts/packages/native
-
-    - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
-      name: Download native macos packages
-      with:
-        name: native-macOS
+        pattern: native-*
+        merge-multiple: true
         path: ${{ github.workspace }}/artifacts/packages/native
 
     - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1