Ansible major versions are upgraded manually to support multiple
OS/Python versions. Configure Dependabot to still propose minor and
patch updates while skipping semver-major bumps.
Signed-off-by: Sumit Solanki <sumit.solanki@ibm.com>
This is more in-line with dependabot and similar auto-updaters.
Reduce ci coverage on github action updating (it does not change
kubespray code, no need for testing).