add support for Sinatra 4

Author: beanieboi

.github/workflows/ruby.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         ruby-version: ['3.0', '3.1', '3.2']
         activesupport-version: ['6', '7']
-        sinatra-version: ['2', '3']
+        sinatra-version: ['2', '3', '4']
     env:
       ACTIVESUPPORT_MAJOR: ${{ matrix.activesupport-version }}
       SINATRA_MAJOR: ${{ matrix.sinatra-version }}

pliny.gemspec

@@ -20,15 +20,15 @@ Gem::Specification.new do |gem|
   gem.add_dependency "prmd",           "~> 0.11", ">= 0.11.4"
 
 
-  gem.add_dependency "sinatra",        ">= 2.0", "< 4.0"
+  gem.add_dependency "sinatra",        ">= 2.0", "< 5.0"
   gem.add_dependency "http_accept",    "~> 0.1",  ">= 0.1.5"
   gem.add_dependency "sinatra-router", "~> 0.2",  ">= 0.2.4"
   gem.add_dependency "thor",           ">= 0.19", "< 2.0"
 
   gem.add_development_dependency "rake",              "~> 13.0"
   gem.add_development_dependency "rack-test",         "~> 1.1.0"
   gem.add_development_dependency "rspec",             "~> 3.1", ">= 3.1.0"
-  gem.add_development_dependency "sinatra-contrib",   ">= 2.0", "< 4.0"
+  gem.add_development_dependency "sinatra-contrib",   ">= 2.0", "< 5.0"
   gem.add_development_dependency "timecop", "~> 0.7", ">= 0.7.1"
   gem.add_development_dependency "pry"
   gem.add_development_dependency "pry-byebug"