feat: Update minimum Ruby to v3.2 and support v4.0

Author: yoshi-automation

google-cloud-trace/Gemfile

@@ -28,14 +28,17 @@ end
 gem "activerecord", ">= 5.0", "< 7.1.4"
 gem "autotest-suffix", "~> 1.1"
 gem "faraday", ">= 1.3", "< 3"
-gem "google-style", "~> 1.30.1"
-gem "minitest", "~> 5.16"
+gem "google-style", "~> 1.32.0"
+gem "irb", "~> 1.17"
+gem "minitest", "~> 6.0.2"
 gem "minitest-autotest", "~> 1.0"
-gem "minitest-focus", "~> 1.1"
-gem "minitest-rg", "~> 5.2"
+gem "minitest-focus", "~> 1.4"
+gem "minitest-mock", "~> 5.27"
+gem "minitest-rg", "~> 5.3"
+gem "ostruct", "~> 0.5.5"
 gem "railties", ">= 5.0", "< 7.1.4"
 gem "rake"
-gem "redcarpet", "~> 3.0"
-gem "simplecov", "~> 0.9"
+gem "redcarpet", "~> 3.6"
+gem "simplecov", "~> 0.22"
 gem "yard", "~> 0.9"
 gem "yard-doctest" # , "~> 0.1.6"

google-cloud-trace/README.md

@@ -209,7 +209,7 @@ end
 
 ## Supported Ruby Versions
 
-This library is supported on Ruby 3.0+.
+This library is supported on Ruby 3.2+.
 
 Google provides official support for Ruby versions that are actively supported
 by Ruby Core—that is, Ruby versions that are either in normal maintenance or

google-cloud-trace/google-cloud-trace.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |gem|
                       ["OVERVIEW.md", "AUTHENTICATION.md", "INSTRUMENTATION.md", "LOGGING.md", "CONTRIBUTING.md", "TROUBLESHOOTING.md", "CHANGELOG.md", "CODE_OF_CONDUCT.md", "LICENSE", ".yardopts"]
   gem.require_paths = ["lib"]
 
-  gem.required_ruby_version = ">= 3.0"
+  gem.required_ruby_version = ">= 3.2"
 
   gem.add_dependency "google-cloud-core", "~> 1.5"
   gem.add_dependency "stackdriver-core", "~> 1.3"