MONGOID-5818 Rails 8 support

Author: comandeo-mongo

.evergreen/config.yml

@@ -727,6 +727,19 @@ buildvariants:
   tasks:
     - name: "test"
 
+- matrix_name: "rails-8"
+  matrix_spec:
+    ruby: ["ruby-3.2"]
+    driver: ["current"]
+    mongodb-version: "7.0"
+    topology: "standalone"
+    rails: ['8.0']
+    os: ubuntu-22.04
+    fle: helper
+  display_name: "${rails}, ${driver}, ${mongodb-version} (FLE ${fle})"
+  tasks:
+    - name: "test"
+
 - matrix_name: "bson-min"
   matrix_spec:
     driver: [bson-min]

.evergreen/config/variants.yml.erb

@@ -111,6 +111,19 @@ buildvariants:
   tasks:
     - name: "test"
 
+- matrix_name: "rails-8"
+  matrix_spec:
+    ruby: ["ruby-3.2"]
+    driver: ["current"]
+    mongodb-version: "7.0"
+    topology: "standalone"
+    rails: ['8.0']
+    os: ubuntu-22.04
+    fle: helper
+  display_name: "${rails}, ${driver}, ${mongodb-version} (FLE ${fle})"
+  tasks:
+    - name: "test"
+
 - matrix_name: "bson-min"
   matrix_spec:
     driver: [bson-min]

gemfiles/rails-8.0.gemfile

@@ -0,0 +1,11 @@
+# rubocop:todo all
+source 'https://rubygems.org'
+
+gem 'actionpack', '~> 8.0'
+gem 'activemodel', '~> 8.0'
+
+gemspec path: '..'
+
+require_relative './standard'
+
+standard_dependencies

mongoid.gemspec

@@ -38,7 +38,7 @@ Gem::Specification.new do |s|
   # Ruby 3.0 requires ActiveModel 6.0 or higher.
   # activemodel 7.0.0 cannot be used due to Class#descendants issue
   # See: https://github.com/rails/rails/pull/43951
-  s.add_dependency("activemodel", ['>=5.1', '<7.3', '!= 7.0.0'])
+  s.add_dependency("activemodel", ['>=5.1', '<8.1', '!= 7.0.0'])
   s.add_dependency("mongo", ['>=2.18.0', '<3.0.0'])
   s.add_dependency("concurrent-ruby", ['>= 1.0.5', '< 2.0'])