Activate manage_cron_permissions to satisfy cron tests

[mcgege]

See dev-sec/linux-baseline#150

Signed-off-by: Michael Geiger info@mgeiger.de

[codecov-io]

Codecov Report

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@@            Coverage Diff            @@
##             master     #269   +/-   ##
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  Coverage          ?   53.48%           
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  Files             ?        4           
  Lines             ?       43           
  Branches          ?        0           
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  Hits              ?       23           
  Misses            ?       20           
  Partials          ?        0           

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