Pin jaeger-client to 1.1.x
Tests started to randomly fail in CI because they were pulling in a newer version of jaeger-client (v1.2) which has seen breaking API changes.
Changing the pattern to ~> 1.1.0
to not pull in updates with potentially breaking API changes.
We can consider the 1.2 upgrade in a separate discussion.
Edited by Matthias Käppler