chore: add Docker Buildx setup step to GitHub Actions workflow

- Introduce a step to set up Docker Buildx for enhanced multi-platform builds in the workflow.

Author: theboringhumane

.github/workflows/artifacts.yml

@@ -58,6 +58,9 @@ jobs:
         id: get_owner_lowercase
         run: |
           echo "OWNER_LOWERCASE=$(echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]')" >> $GITHUB_ENV
+      
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Build and push docker image
         uses: docker/build-push-action@v5