[BUG] discovery module uses deprecated parameter mode

[robin-checkmk]

Describe the bug

The formerly deprecated Checkmk REST API parameter mode for the bulk service discovery is removed in Checkmk 2.4.0, hence the newly introduced options parameter has to be used by the discovery module.

Component Name

Component Name: discovery

Ansible Version

$ ansible --version

Checkmk Version and Edition

2.4.0

Collection Version

$ ansible-galaxy collection list

To Reproduce
Steps to reproduce the behavior:

1. Take a look at this GitHub Actions run.

Expected behavior

The module should detect the Checkmk version and use mode and options accordingly.

Actual behavior

The module fails.

Minimum reproduction example

See the linked GitHub Actions run above.

Additional context