[PR #427/0a68bb27 backport][stable-2] CI is changed (#429)

* Is changed (#427)

* Refactor tests to use "is" and "is not" changed

* Refactor tests to use is succeeded or is failed

* Reformat indentation

* Add filter "bool" to prevent issues

(cherry picked from commit 0a68bb270f)

* Fix error message verification

I don't know why this works on main, but in stable-1, the error message
is "invalid privileges string: Invalid privileges specified:
frozenset({'INVALID'})"

* Add filter for test that won't work with mariadb

* Add test databases cleanup

* Backport small diff from main

tests/integration/targets/test_mysql_variables/tasks/mysql_variables.yml

@@ -359,7 +359,9 @@
 
         - include: assert_var.yml changed=true output={{ result }} var_name={{ set_name }} var_value='{{ def_val }}'
 
-      when: mysql_version is not version('8.0', '<')
+      when:
+        - mysql_version is version('8.0', '>=')
+        - install_type == 'mysql'
 
     # Bugfix of https://github.com/ansible/ansible/issues/54239
     # - name: set variable containing dot