Note archived status of pact-consumer-minitest

Update documentation to reflect the archived status of pact-consumer-minitest.

Author: rud

website/docs/implementation_guides/ruby/creating_pacts.md

@@ -41,6 +41,6 @@ end
 
 ## With Minitest
 
-Use [pact-consumer-minitest](https://github.com/bethesque/pact-consumer-minitest).
+Use [pact-consumer-minitest](https://github.com/bethesque/pact-consumer-minitest) (archived as of 2026-03-18).