persistence: Updates dependency on model

Author: picandocodigo

elasticsearch-persistence/elasticsearch-persistence.gemspec

@@ -44,7 +44,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'activemodel',         '> 4'
   s.add_dependency 'activesupport',       '> 4'
   s.add_dependency 'elasticsearch',       '~> 8'
-  s.add_dependency 'elasticsearch-model', '7.2.1'
+  s.add_dependency 'elasticsearch-model', '8'
   s.add_dependency 'hashie'
 
   s.add_development_dependency 'bundler'