ci(podan): remove outdated repo for podman package (#497)

.github/workflows/ci.yml

@@ -4,10 +4,6 @@ concurrency:
   group: pr-${{ github.event.number }}
   cancel-in-progress: true
 
-env:
-  OPENSUSE_UNOFFICIAL_LIBCONTAINERS_KEY_URL: "https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/unstable/xUbuntu_22.04/Release.key"
-  OPENSUSE_UNOFFICIAL_LIBCONTAINERS_SOURCE_URL: "https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/unstable/xUbuntu_22.04"
-
 on:
   pull_request_target:
     types:
@@ -115,8 +111,6 @@ jobs:
       run: sudo add-apt-repository ppa:criu/ppa && sudo apt update
     - name: Install podman v4
       run: |
-        echo "deb $OPENSUSE_UNOFFICIAL_LIBCONTAINERS_SOURCE_URL/ /" | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:unstable.list
-        curl -fsSL $OPENSUSE_UNOFFICIAL_LIBCONTAINERS_KEY_URL | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/devel_kubic_libcontainers_unstable.gpg > /dev/null
         sudo apt -y purge podman
         sudo apt -y update && sudo apt -y satisfy "podman (>= 4.0), podman-docker"
     - name: Start Podman API