Apply manual rubocop fixes

app/policies/exercise_policy.rb

@@ -5,7 +5,7 @@ class ExercisePolicy < AdminOrAuthorPolicy
     admin?
   end
 
-  %i[show? feedback? statistics? get_rfcs_for_exercise?].each do |action|
+  %i[show? feedback? statistics? rfcs_for_exercise?].each do |action|
     define_method(action) { admin? || teacher_in_study_group? || teacher? && @record.public? || author? }
   end
 

app/policies/request_for_comment_policy.rb

@@ -37,11 +37,11 @@ class RequestForCommentPolicy < ApplicationPolicy
     everyone
   end
 
-  def get_my_comment_requests?
+  def my_comment_requests?
     everyone
   end
 
-  def get_rfcs_with_my_comments?
+  def rfcs_with_my_comments?
     everyone
   end
 end