Revert "Publish a multi-platform Docker image" (#5363)

This reverts commit 73c49d5.

.github/workflows/docker.yml

@@ -4,42 +4,43 @@ on:
   push:
     branches:
       - main
-      - publish-a-multi-platform-docker-image
     tags:
       - '*'
 
 jobs:
   build:
     runs-on: ubuntu-20.04
+
     steps:
     - uses: actions/checkout@v3
+
     - name: Extract DOCKER_TAG using tag name
       if: startsWith(github.ref, 'refs/tags/')
       run: |
         echo "DOCKER_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+    
     - name: Use default DOCKER_TAG
       if: startsWith(github.ref, 'refs/tags/') != true
       run: |
-        echo "DOCKER_TAG=preview" >> $GITHUB_ENV
+        echo "DOCKER_TAG=latest" >> $GITHUB_ENV
+    
     - name: Set lowercase repository name
       run: |
         echo "REPOSITORY_LC=${REPOSITORY,,}" >>${GITHUB_ENV}
       env:
         REPOSITORY: '${{ github.repository }}'
-    - name: Set up QEMU
-      uses: docker/setup-qemu-action@v2
+
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v1
-      with:
-        platforms: linux/amd64,linux/arm64
-    - name: Log in to GitHub registry
-      uses: docker/login-action@v1
+
+    - name: Login to GitHub registry
+      uses: docker/login-action@v1 
       with:
         username: ${{ github.actor }}
         password:  ${{ secrets.GITHUB_TOKEN }}
         registry: ghcr.io
+
     - uses: docker/build-push-action@v2
       with:
-        platforms: linux/amd64,linux/arm64
         push: true
         tags: ghcr.io/${{ env.REPOSITORY_LC }}:${{ env.DOCKER_TAG }}