Fix CI for rack 3.1 (#2327)

Gemfile

@@ -9,10 +9,7 @@ ruby_version = Gem::Version.new(RUBY_VERSION)
 if ruby_version >= Gem::Version.new("2.7.0")
   gem "debug", github: "ruby/debug", platform: :ruby
   gem "irb"
-
-  if ruby_version >= Gem::Version.new("3.0.0")
-    gem "ruby-lsp-rspec"
-  end
+  gem "ruby-lsp-rspec" if ruby_version >= Gem::Version.new("3.0.0") && RUBY_PLATFORM != "java"
 end
 
 # For RSpec

sentry-ruby/spec/sentry/interfaces/request_interface_spec.rb

@@ -1,7 +1,7 @@
-return unless defined?(Rack)
-
 require 'spec_helper'
 
+return unless defined?(Rack)
+
 RSpec.describe Sentry::RequestInterface do
   let(:env) { Rack::MockRequest.env_for("/test") }
   let(:send_default_pii) { false }
@@ -44,14 +44,16 @@
     let(:env) { Rack::MockRequest.env_for("/test", additional_headers) }
 
     it 'transforms headers to conform with the interface' do
-      expect(subject.headers).to eq("Content-Length" => "0", "Version" => "HTTP/1.1", "X-Request-Id" => "12345678")
+      expect(subject.headers).to include("Version" => "HTTP/1.1", "X-Request-Id" => "12345678")
+      expect(subject.headers).not_to include("Cookie")
     end
 
     context 'from Rails middleware' do
       let(:additional_headers) { { "action_dispatch.request_id" => "12345678" } }
 
       it 'transforms headers to conform with the interface' do
-        expect(subject.headers).to eq("Content-Length" => "0", "X-Request-Id" => "12345678")
+        expect(subject.headers).to include("X-Request-Id" => "12345678")
+        expect(subject.headers).not_to include("Cookie")
       end
     end
 
@@ -61,7 +63,7 @@
       it "doesn't cause any issue" do
         json = JSON.generate(subject.to_hash)
 
-        expect(JSON.parse(json)["headers"]).to eq({ "Content-Length"=>"0", "Foo"=>"Tekirda�" })
+        expect(JSON.parse(json)["headers"]).to include("Foo"=>"Tekirda�")
       end
     end