Bump Ansible SSH ControlPersist param to 300s

[lewisdenny]

We see the following error downstream [1], [2] indicates this error is caused by the SSH socket Ansible creates to multiplex connections fails.

Rather than handling the failure, Ansible fails the task. This is reportedly failing around 30% of the time on a very long running CI job.

300s was selected as it's used by the openstack-ansible project [3] [4]

Jira: https://issues.redhat.com/browse/OSPRH-10719

[1]

TASK [reproducer : Ensure we can ping controller-0 from ctlplane _raw_params=ping -c2 controller-0.utility] ***
fatal: [hypervisor -> ceph-1(ceph-1.hypervisor)]: FAILED! => changed=false
  module_stderr: ''
  module_stdout: ''
  msg: |-
    MODULE FAILURE
    See stdout/stderr for the exact error
  rc: -13

[2] ansible/ansible#78344 [3]
https://opendev.org/openstack/openstack-ansible/src/commit/32c6aa2cec1a2145e2c20a37df23f8b4e4b93e4c/scripts/openstack-ansible.rc#L52 [4] https://opendev.org/openstack/openstack-ansible/commit/cbdba67ad0b5a3e29db390c8e6b66721719184c0

[openshift-ci]

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[openshift-ci]

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