tests: Broaden/parameterise become plugin tests

[moreati]

Currently tests/ansible/integration/become focuses almost exclusive on the sudo plugin. There is much less coverage of e.g. doas, su.

Parameterising the existing sudo tests to take the become plugin as n argument might be an easy win to improve this.

Related

• FreeBSD 12 with become_method 'doas' fails #935
• Add support for fully qualified collection name in become_method #1072
• mitogen_sudo connection plugin and friends are the wrong plugin type for get_option('become_...') #1173
• KeyError: 'community.general.doas' when using become_method: doas #1309