Do not use shorthand hash syntax because jruby

JRuby targets 2.6, and doesn't support this syntax. JRuby 9.3 is still supported: https://github.com/jruby/jruby/wiki/Roadmap

When JRuby 9.3 isn't supported any more, we can drop it.

.rubocop.yml

@@ -73,3 +73,6 @@ Style/DoubleNegation:
 
 Style/Documentation:
   Enabled: false # TODO: Enable again once we have more docs
+
+Style/HashSyntax:
+  EnforcedShorthandSyntax: never

lib/pundit/authorization.rb

@@ -64,7 +64,7 @@ def authorize(record, query = nil, policy_class: nil)
 
       @_pundit_policy_authorized = true
 
-      Pundit.authorize(pundit_user, record, query, policy_class:, cache: policies)
+      Pundit.authorize(pundit_user, record, query, policy_class: policy_class, cache: policies)
     end
 
     # Allow this action not to perform authorization.

lib/pundit/rspec.rb

@@ -55,7 +55,7 @@ def permissions
 
     module DSL
       def permissions(*list, &block)
-        describe(list.to_sentence, permissions: list, caller:) { instance_eval(&block) }
+        describe(list.to_sentence, permissions: list, caller: caller) { instance_eval(&block) }
       end
     end
 

spec/policies/post_policy_spec.rb

@@ -4,7 +4,7 @@
 
 RSpec.describe PostPolicy do
   let(:user) { double }
-  let(:own_post) { double(user:) }
+  let(:own_post) { double(user: user) }
   let(:other_post) { double(user: double) }
   subject { described_class }