Revert "let gon generate the dmg installer and upload it"

Gon is able to produce a working dmg, but there is not a link to application and a background img, for that we need `create-dmg`

This reverts commit 7bb8b91.

Author: umbynos

.github/workflows/release.yml

@@ -288,11 +288,6 @@ jobs:
             deep = true
           }
 
-          # generate a Disk Image
-          dmg {
-            output_path = "ArduinoCreateAgent_${{ matrix.arch }}_notarized.dmg"
-            volume_name = "ArduinoCreateAgent"
-          }
           # Ask Gon for zip output to force notarization process to take place.
           # The CI will upload the zip output
           zip {
@@ -322,11 +317,11 @@ jobs:
           aws s3 cp darwin-${{ matrix.arch }}-bundle.json s3://${{ secrets.DOWNLOADS_BUCKET }}${{ env.TARGET }}
         if: ${{ needs.build.outputs.prerelease != 'true' }}
 
-      - name: Upload artifacts
+      - name: Upload artifact
         uses: actions/upload-artifact@v3
         with:
-          name: ArduinoCreateAgent_${{ matrix.arch }}_notarized
-          path: ArduinoCreateAgent_${{ matrix.arch }}_notarized.dmg
+          name: ArduinoCreateAgent.app_${{ matrix.arch }}_notarized
+          path: ArduinoCreateAgent.app_${{ matrix.arch }}_notarized.zip
           if-no-files-found: error
 
   # This job is responsible for generating the installers (using installbuilder)