tests: filter_kubernetes: skip systemd journal test if not running (#830)
tests: filter_kubernetes: skip systemd journal test if not running (#830)

Its possible that the build system has systemd available,
but the test system does not, leading to a false-failure.

Signed-off-by: Don Bowman <1f1e67e5fdb25d2e5cd18ddc0fee425272daab56@agilicus.com>
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