Embed pymysql within the collection and use default test container

This change eliminates the need to install the connector on each
controlled node, as `pymysql` version 1.1.1 is now included. As a
result, we can safely assume its availability, thus simplifying the
testing process.

Also, I managed to remove the need for pre-built test containers. We
now use the default test containers from ansible-test.

tests/integration/targets/test_mysql_replication/tasks/issue-28.yml

@@ -48,19 +48,8 @@
         login_port: '{{ mysql_primary_port }}'
         ca_cert: /tmp/cert.pem
       register: result
-      ignore_errors: yes
-
-    - assert:
-        that:
-          - result is failed
-      when:
-        - connector_name == 'pymysql'
-
-    - assert:
-        that:
-          - result is succeeded
-      when:
-        - connector_name != 'pymysql'
+      failed_when:
+        - result is success
 
     - name: attempt connection with newly created user ignoring hostname
       mysql_replication:
@@ -70,13 +59,7 @@
         login_host: '{{ mysql_host }}'
         login_port: '{{ mysql_primary_port }}'
         ca_cert: /tmp/cert.pem
-        check_hostname: no
-      register: result
-      ignore_errors: yes
-
-    - assert:
-        that:
-          - result is succeeded or 'pymysql >= 0.7.11 is required' in result.msg
+        check_hostname: false
 
     - name: Drop mysql user
       mysql_user:

tests/integration/targets/test_mysql_replication/tasks/mysql_replication_initial.yml

@@ -259,14 +259,11 @@
         fail_on_error: true
       register: result
 
-    # mysqlclient 2.0.1 and pymysql 0.10.0+ always return "changed"
-    - name: Assert that startreplica is not changed
-      assert:
-        that:
-          - result is not changed
-      when:
-        - connector_name == 'pymysql'
-        - connector_version is version('0.10.0', '<')
+    # # pymysql 0.10.0+ always return "changed"
+    # - name: Assert that startreplica is not changed
+    #   assert:
+    #     that:
+    #       - result is not changed
 
     # Test stopreplica mode:
     - name: Stop replica
@@ -286,23 +283,20 @@
       ansible.builtin.wait_for:
         timeout: 2
 
-    # Test stopreplica mode:
-    # mysqlclient 2.0.1 and pymysql 0.10.0+ always return "changed"
-    - name: Stop replica that is no longer running
-      mysql_replication:
-        <<: *mysql_params
-        login_port: '{{ mysql_replica1_port }}'
-        mode: stopreplica
-        fail_on_error: true
-      register: result
+    # # Test stopreplica mode:
+    # # pymysql 0.10.0+ always return "changed"
+    # - name: Stop replica that is no longer running
+    #   mysql_replication:
+    #     <<: *mysql_params
+    #     login_port: '{{ mysql_replica1_port }}'
+    #     mode: stopreplica
+    #     fail_on_error: true
+    #   register: result
 
-    - name: Assert that stopreplica is not changed
-      assert:
-        that:
-          - result is not changed
-      when:
-        - connector_name == 'pymysql'
-        - connector_version is version('0.10.0', '<')
+    # - name: Assert that stopreplica is not changed
+    #   assert:
+    #     that:
+    #       - result is not changed
 
     # master / slave related choices were removed in 3.0.0
     # https://github.com/ansible-collections/community.mysql/pull/252