gerrit-verifications: fix erlang/osmo_ss7 name

Fixes: aadc60f4037dcf9529a30d362648b0f0849825c2 ("jobs/gerrit-verifications.yml: add erlang repos")
Related: OS#4345
Change-Id: Id78f7e62e12c7595329ef8a265e522f27a087604
1 file changed