scripts/repo-install-test: test osmo-pfcp-tool in latest
osmo-pfcp-tool is available in latest for quite some time now, so adjust
the check.
Related: osmo-upf Icf4bb566d9b627ead370174e92629a9fccde755e
Change-Id: Icca5a31270bca03596be8ed0104bfb7143fb1ede
