Use regctl to push multi-arch image (#30101)

* Use regctl to push multi-arch image

---------

Co-authored-by: Luis Paolini <paoliniluis@gmail.com>

.github/workflows/uberjar.yml

@@ -251,10 +251,15 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       # Push experimental ubuntu image only for versions based on a master
+      - name: Install regctl
+        uses: regclient/actions/regctl-installer@main
+        with:
+          release: 'v0.4.7'
+      - name: Switch regctl to point to localhost:5000 via http
+        run: regctl registry set --tls disabled localhost:5000
       - name: Retag and push ubuntu-based images if master (ee)
         if: ${{ matrix.edition == 'ee' }}
-        run: docker tag localhost:5000/metabase-dev:${{ steps.extract_branch.outputs.branch }}-ee-ubuntu metabase/metabase-enterprise-head:latest-ubuntu && docker push metabase/metabase-enterprise-head:latest-ubuntu
-
+        run: regctl image copy localhost:5000/metabase-dev:${{ steps.extract_branch.outputs.branch }}-ee-ubuntu metabase/metabase-enterprise-head:latest-ubuntu
       - name: Retag and push ubuntu-based images if master (oss)
         if: ${{ matrix.edition == 'oss' }}
-        run: docker tag localhost:5000/metabase-dev:${{ steps.extract_branch.outputs.branch }}-oss-ubuntu metabase/metabase-head:latest-ubuntu && docker push metabase/metabase-head:latest-ubuntu
+        run: regctl image copy localhost:5000/metabase-dev:${{ steps.extract_branch.outputs.branch }}-oss-ubuntu metabase/metabase-head:latest-ubuntu