CentOS 9: Disable unit tests dependent on puppet-postgresql

The puppt-postgresql module does not support CentOS 9 yet and requires
some version parameters to be run on CentOS 9. This change disables
unit tests requiring that module, until the module supports CentOS 9.

Change-Id: Idd96ef1789268841cefa5e773b490e0470d7b9a0

spec/classes/nova_db_postgresql_api_spec.rb

@@ -37,7 +37,10 @@ describe 'nova::db::postgresql_api' do
         }))
       end
 
-      it_configures 'nova::db::postgresql'
+      # TODO(tkajinam): Remove this once puppet-postgresql supports CentOS 9
+      unless facts[:osfamily] == 'RedHat' and facts[:operatingsystemmajrelease].to_i >= 9
+        it_configures 'nova::db::postgresql'
+      end
     end
   end
 

spec/classes/nova_db_postgresql_spec.rb

@@ -55,7 +55,10 @@ describe 'nova::db::postgresql' do
         }))
       end
 
-      it_configures 'nova::db::postgresql'
+      # TODO(tkajinam): Remove this once puppet-postgresql supports CentOS 9
+      unless facts[:osfamily] == 'RedHat' and facts[:operatingsystemmajrelease].to_i >= 9
+        it_configures 'nova::db::postgresql'
+      end
     end
   end