Merge pull request #328 from CESNET/v5.6.0 #519

Job	Run time
check / clang-checks	1m 14s
check / editor-config	8s
build-os-matrix	2s
build (oraclelinux:10) / build	1m 58s
make-tests (oraclelinux:10) / tests	1m 42s
rpm-build (oraclelinux:10) / rpm-build	5m 42s
ipfix-elements-check / ipfix-elements-checks	26s
rpm-install (oraclelinux:10) / rpm-install	1m 3s
	12m 15s

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