feat(gems): update to pact_broker-client 1.12.0

Author: bethesque

packaging/Gemfile.lock

@@ -51,7 +51,7 @@ GEM
       rspec (>= 2.14)
       term-ansicolor (~> 1.0)
       thor
-    pact_broker-client (1.11.0)
+    pact_broker-client (1.12.0)
       httparty
       json
       table_print (~> 1.5)