Update version: master should be 8.0.0

Author: picandocodigo

elasticsearch-api/lib/elasticsearch/api/version.rb

@@ -17,6 +17,6 @@
 
 module Elasticsearch
   module API
-    VERSION = "8.0.0-SNAPSHOT"
+    VERSION = '8.0.0'.freeze
   end
 end

elasticsearch-transport/lib/elasticsearch/transport/version.rb

@@ -17,6 +17,6 @@
 
 module Elasticsearch
   module Transport
-    VERSION = "8.0.0-SNAPSHOT"
+    VERSION = '8.0.0'.freeze
   end
 end

elasticsearch-xpack/lib/elasticsearch/xpack/version.rb

@@ -17,6 +17,6 @@
 
 module Elasticsearch
   module XPack
-    VERSION = "8.0.0-SNAPSHOT"
+    VERSION = '8.0.0'.freeze
   end
 end

elasticsearch/elasticsearch.gemspec

@@ -32,8 +32,8 @@ Gem::Specification.new do |s|
 
   s.required_ruby_version = '>= 2.5'
 
-  s.add_dependency 'elasticsearch-transport', '8.0.0-SNAPSHOT'
-  s.add_dependency 'elasticsearch-api',       '8.0.0-SNAPSHOT'
+  s.add_dependency 'elasticsearch-transport', '8.0.0'
+  s.add_dependency 'elasticsearch-api',       '8.0.0'
   s.add_development_dependency 'elasticsearch-extensions'
 
   s.add_development_dependency 'ansi'

elasticsearch/lib/elasticsearch/version.rb

@@ -3,5 +3,5 @@
 # See the LICENSE file in the project root for more information
 
 module Elasticsearch
-  VERSION = "8.0.0-SNAPSHOT"
+  VERSION = '8.0.0'.freeze
 end