Log Message:
knot: Update to 3.0.1

Changelog:
3.0.1
Features:

        New command in keymgr for validation of RRSIGs in SKR
        Keymgr validates RRSIGs in SKR during import
        New option in kzonecheck to skip DNSSEC-related checks

Improvements:

        Module noudp has new configuration option for UDP truncation rate
        Better detection of reproducible signing availability
        Kxdpgun allows setting of network interface
        Default control timeout in knotc was increased to 60 seconds
        DNSSEC validation searches for invalid redundant RRSIGs
        Configuration source detection no longer considers empty confdb \ 
directory as active configuration
        Zone backup preserves original zone file if zone file synchronization is \ 
disabled

Bugfixes:

        NSEC3 re-salt can cause server crash due to possible zone inconsistencies
        Zone reload logs 'invalid parameter' if zone file not changed
        Outgoing multi-message transfer can contain invalid compression pointers \ 
under specific conditions
        Improper handling of file descriptors in libdnssec
        Server crashes if no policy is configured with DNSSEC validation
        Server crashes if DNSSEC validation is enabled for unsigned zone
        Failed to build with libnghttp2 (Thanks to Robert Edmonds)
        Various bugs in zone data backup/restore