ci: undo upgrade docker

Signed-off-by: Lin Yang <[email protected]>

.github/workflows/main.yml

@@ -265,31 +265,6 @@ jobs:
           sudo apt-get autoremove -y
           sudo apt-get clean
           rm -rf /usr/share/dotnet/
-      - name: Upgrade Docker
-        if: ${{ env.CLUSTER_INSTALL_TYPE == 'K3dCluster' }}
-        run: |
-          # Run the following command to uninstall all conflicting packages:
-          for pkg in docker.io docker-doc docker-compose docker-compose-v2 podman-docker containerd runc; do sudo apt-get remove $pkg; done
-          
-          # Add Docker's official GPG key:
-          sudo apt-get update
-          sudo apt-get install ca-certificates curl
-          sudo install -m 0755 -d /etc/apt/keyrings
-          sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
-          sudo chmod a+r /etc/apt/keyrings/docker.asc
-
-          # Add the repository to Apt sources:
-          echo \
-            "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
-            $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
-            sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
-          sudo apt-get update
-          
-          # Install Docker:
-          sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
-          
-          #Check Docker version:
-          docker version
       - name: Change container registry in case it's k3d cluster
         if: ${{ env.CLUSTER_INSTALL_TYPE == 'K3dCluster' }}
         run: |