Improve download name

Author: joshmoore

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
       - name: Upload artwork as artifact
         uses: actions/upload-artifact@v2
         with:
-          name: pngs
+          name: zarr-logo-pngs
           path: "*.png"
 
   release:
@@ -39,7 +39,7 @@ jobs:
       - name: Download artwork artifact
         uses: actions/download-artifact@v2
         with:
-          name: pngs
+          name: zarr-logo-pngs
           path: .
       - name: Upload website as release asset
         env: