update Rails dependency to 8 and version to 0.2.8

Gemfile

@@ -6,7 +6,7 @@ ruby '> 3.3'
 gemspec
 
 group :development,:test do
-  gem 'rails', '< 8.0'
-  gem "rspec-rails", '< 8'
+  gem 'rails', '< 9.0'
+  gem "rspec-rails", '< 9'
   gem 'sqlite3'
 end

Gemfile.lock

@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    rails_dictionary (0.2.6)
-      rails (< 8)
+    rails_dictionary (0.2.8)
+      rails (< 9)
 
 GEM
   remote: https://rubygems.org/
@@ -231,9 +231,9 @@ PLATFORMS
   x86_64-linux-musl
 
 DEPENDENCIES
-  rails (< 8.0)
+  rails (< 9.0)
   rails_dictionary!
-  rspec-rails (< 8)
+  rspec-rails (< 9)
   sqlite3
 
 RUBY VERSION

lib/rails_dictionary/version.rb

@@ -1,3 +1,3 @@
 module RailsDictionary
-  VERSION = "0.2.7"
+  VERSION = "0.2.8"
 end

rails_dictionary.gemspec

@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
   s.description = %q{Rails plugin for mapping static data of web application to Dictionary class}
 
 
-  s.add_runtime_dependency 'rails', '< 8'
+  s.add_runtime_dependency 'rails', '< 9'
 
   s.files         = `git ls-files`.split("\n")
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")