Apply Rubocop Rails/WhereNot (#23448)

* Apply Rubocop Rails/WhereNot

* Update spec for where.not

app/lib/vacuum/access_tokens_vacuum.rb

@@ -9,10 +9,10 @@ class Vacuum::AccessTokensVacuum
   private
 
   def vacuum_revoked_access_tokens!
-    Doorkeeper::AccessToken.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+    Doorkeeper::AccessToken.where.not(revoked_at: nil).where('revoked_at < NOW()').delete_all
   end
 
   def vacuum_revoked_access_grants!
-    Doorkeeper::AccessGrant.where('revoked_at IS NOT NULL').where('revoked_at < NOW()').delete_all
+    Doorkeeper::AccessGrant.where.not(revoked_at: nil).where('revoked_at < NOW()').delete_all
   end
 end

app/models/session_activation.rb

@@ -59,7 +59,7 @@ class SessionActivation < ApplicationRecord
     end
 
     def exclusive(id)
-      where('session_id != ?', id).destroy_all
+      where.not(session_id: id).destroy_all
     end
   end
 

spec/models/session_activation_spec.rb

@@ -118,8 +118,8 @@ RSpec.describe SessionActivation, type: :model do
     let(:id) { '1' }
 
     it 'calls where.destroy_all' do
-      expect(described_class).to receive_message_chain(:where, :destroy_all)
-        .with('session_id != ?', id).with(no_args)
+      expect(described_class).to receive_message_chain(:where, :not, :destroy_all)
+        .with(session_id: id).with(no_args)
 
       described_class.exclusive(id)
     end