Rpmbuild: Add new dependencies on python3-{pyaml,jsonschema} #110

Job	Run time
check / clang-checks	1m 37s
check / editor-config	11s
build-os-matrix	2s
rpm-build (oraclelinux:9) / rpm-build	5m 28s
make-tests (oraclelinux:9) / tests	2m 22s
build (oraclelinux:9) / build	2m 46s
rpm-install (oraclelinux:9) / rpm-install	1m 10s
	13m 36s

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