Bump dependencies and supported Ruby version range

to keep up with the times.

This excludes ddtrace which has changed
the API in 1.x.

This also swaps File.exists? which was
removed in Ruby 3.2? in favor of a grammatically
incorrect File.exist? :facepalm

Gemfile

@@ -1,13 +1,14 @@
 source 'https://rubygems.org'
 
-ruby '>= 2.3.0'
+# because we use an anscient version of ddtrace
+ruby '>= 2.7.0', '< 3.2'
 
 gemspec
 
 group :development do
   gem "rake"
-  gem "guard", "~> 2.14", platform: :mri_23
-  gem "guard-rspec", "~> 4.7", platform: :mri_23
+  gem "guard", "~> 2.14", platform: :mri
+  gem "guard-rspec", "~> 4.7", platform: :mri
 
   gem "yard", "~> 0.9"
   gem 'kramdown', "> 0", platform: :jruby
@@ -24,8 +25,8 @@ group :development, :test do
   gem "honeybadger"
   gem "coveralls", "~> 0.8.15", require: false
   gem "newrelic_rpm"
-  gem "ddtrace", "~> 0.54.2"
-  gem "airbrake", "~> 10.0"
+  gem "ddtrace", "~> 0.54"
+  gem "airbrake", "~> 13.0"
   gem "rollbar"
   gem "bugsnag"
 end

hutch.gemspec

@@ -3,10 +3,10 @@ require File.expand_path('../lib/hutch/version', __FILE__)
 Gem::Specification.new do |gem|
   if defined?(JRUBY_VERSION)
     gem.platform = 'java'
-    gem.add_runtime_dependency 'march_hare', '>= 3.0.0'
+    gem.add_runtime_dependency 'march_hare', '>= 4.5.0'
   else
     gem.platform = Gem::Platform::RUBY
-    gem.add_runtime_dependency 'bunny', '>= 2.19', '< 3.0'
+    gem.add_runtime_dependency 'bunny', '>= 2.23', '< 3.0'
   end
   gem.add_runtime_dependency 'carrot-top', '~> 0.0.7'
   gem.add_runtime_dependency 'multi_json', '~> 1.15'

lib/hutch/cli.rb

@@ -234,7 +234,7 @@ def daemonise_process
     end
 
     def abort_without_file(file, file_description, &block)
-      abort_with_message("#{file_description} '#{file}' not found") unless File.exists?(file)
+      abort_with_message("#{file_description} '#{file}' not found") unless File.exist?(file)
 
       yield
     end