[CI] Remove ansible-test custom containers (#650)

* Cut tests containers

* Cut unused flatten versions

* Fix installation of mysqlclient on Ubuntu

* Cut unused variables

* Fix package missing on Unbuntu 22.04

* Fix variable templating

* Fix test for ansible 2.17 and do remove the ignore_errors

ignore_errors is bad because it makes searching for real errors
difficult.

tests/integration/targets/setup_controller/tasks/requirements.yml

@@ -0,0 +1,20 @@
+---
+
+- name: "{{ role_name }} | Requirements | Install Linux packages"
+  ansible.builtin.package:
+    name:
+      - bzip2     # To test mysql_db dump compression
+      - "{{ db_engine }}-client"
+
+      # The command mysql-config must be present for mysqlclient python package.
+      # The package libmysqlclient-dev that provides this command have a
+      # different name between Ubuntu 20.04 and 22.04. Luckily, libmysql++ is
+      # available on both.
+      - "{{ 'libmysql++-dev' if db_engine == 'mysql' else 'libmariadb-dev' }}"
+    state: present
+
+- name: "{{ role_name }} | Requirements | Install Python packages"
+  ansible.builtin.pip:
+    name:
+      - "{{ connector_name }}=={{ connector_version }}"
+    state: present