fix: reverting safe navigation operator to chained calls.

Author: rashiagarwal

lib/pact/pact_broker/fetch_pacts.rb

@@ -34,11 +34,15 @@ def self.call(provider, tags, broker_base_url, basic_auth_options)
 
       def call
         get_index
-        tags&.any? ? get_tagged_pacts_for_provider : get_latest_pacts_for_provider
+        tag_exist ? get_tagged_pacts_for_provider : get_latest_pacts_for_provider
       end
 
       private
 
+      def tag_exist
+        tags && tags.any?
+      end
+
       def get_tagged_pacts_for_provider
         tags.collect do |tag|
           link = get_link(tag)