chore(rubocop): fix Rails/DurationArithmetic

app/models/concerns/procedure_stats_concern.rb

@@ -108,7 +108,7 @@ module ProcedureStatsConcern
   end
 
   def last_considered_processed_at
-    (Time.zone.now - 1.month).end_of_month
+    (1.month.ago).end_of_month
   end
 
   def convert_seconds_in_days(seconds)

spec/factories/procedure.rb

@@ -318,7 +318,7 @@ FactoryBot.define do
       published
 
       aasm_state { :close }
-      published_at { Time.zone.now - 1.second }
+      published_at { 1.second.ago }
       closed_at { Time.zone.now }
     end
 
@@ -326,7 +326,7 @@ FactoryBot.define do
       published
 
       aasm_state { :depubliee }
-      published_at { Time.zone.now - 1.second }
+      published_at { 1.second.ago }
       unpublished_at { Time.zone.now }
     end
 

spec/models/procedure_spec.rb

@@ -462,12 +462,12 @@ describe Procedure do
     end
 
     context "with token expired" do
-      let(:expiration_time) { (Time.zone.now - 1.day).to_i }
+      let(:expiration_time) { (1.day.ago).to_i }
       it { is_expected.to be_truthy }
     end
 
     context "with token not expired" do
-      let(:expiration_time) { (Time.zone.now + 1.day).to_i }
+      let(:expiration_time) { (1.day.from_now).to_i }
       it { is_expected.to be_falsey }
     end
   end