containerd: download containerd from upstream instead of using distro specific packages (#7970)

* Containerd: download containerd from upstream instead of using distro specific packages

split runc download to separate role
make bootstrap-os role deploy container-selinux and seccomp libraries
clean up package manager provided containerd
move variables to docker role that are no longer common with containerd

* Containerd: make molecule testing more relevant

* replace ubuntu18 with ubuntu20
* add centos8 and debian11 to molecule tests
* run kubernetes/preinstall role to ensure relevancy
  of test including dependency packages

* CI: adjust test scenarios for downloaded containerd

roles/container-engine/containerd-common/tasks/main.yml

@@ -1,5 +1,17 @@
 ---
-- name: gather os specific variables
+- name: containerd-common | check if fedora coreos
+  stat:
+    path: /run/ostree-booted
+    get_attributes: no
+    get_checksum: no
+    get_mime: no
+  register: ostree
+
+- name: containerd-common | set is_ostree
+  set_fact:
+    is_ostree: "{{ ostree.stat.exists }}"
+
+- name: containerd-common | gather os specific variables
   include_vars: "{{ item }}"
   with_first_found:
     - files: