Dockerfile: Add installation of ipfixprobe-input-pcap and #123

Job	Run time
check / editor-config	6s
check / clang-checks	1m 39s
build-os-matrix	4s
build (oraclelinux:9) / build	2m 40s
rpm-build (oraclelinux:9) / rpm-build	5m 26s
make-tests (oraclelinux:9) / tests	2m 18s
rpm-install (oraclelinux:9) / rpm-install	1m 9s
	13m 22s

Provide feedback