387ae9f ipa-server-upgrade now checks custodia server keys

Authored and Committed by cheimes a year ago
    ipa-server-upgrade now checks custodia server keys
    
    The ipa-server-upgrade command now checks for presence of ipa-custodia's
    config and server keys. In case any of the files is missing, it
    re-creates both files.
    
    Partly resolves https://pagure.io/freeipa/issue/6893. The upgrader does
    not auto-detect broken or mismatching keys yet.
    
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-By: Fraser Tweedale <ftweedal@redhat.com>