Merge pull request #19 from negz/down

Update to v4 of the upload and download artifacts actions

.github/workflows/ci.yml

@@ -118,9 +118,9 @@ jobs:
         run: ./crossplane xpkg build --package-file=${{ matrix.arch }}.xpkg --package-root=package/ --embed-runtime-image-tarball=runtime-${{ matrix.arch }}.tar
       
       - name: Upload Single-Platform Package
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
-          name: packages
+          name: package-${{ matrix.arch }}
           path: "*.xpkg"
           if-no-files-found: error
           retention-days: 1
@@ -137,10 +137,10 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Download Single-Platform Packages
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
-          name: packages
           path: .
+          merge-multiple: true
 
       - name: Setup the Crossplane CLI
         run: "curl -sL https://raw.githubusercontent.com/crossplane/crossplane/master/install.sh | sh"