chore: Fix contact model silently discarding invalid attributes (#4994)

fixes: #4775

spec/models/contact_spec.rb

@@ -44,41 +44,29 @@ RSpec.describe Contact do
     end
   end
 
-  # rubocop:disable Rails/SkipsModelValidations
   context 'when phone number format' do
-    it 'will not throw error for existing invalid phone number' do
+    it 'will throw error for existing invalid phone number' do
       contact = create(:contact)
-      contact.update_column(:phone_number, '344234')
-      contact.reload
-      expect(contact.update!(name: 'test')).to eq true
-      expect(contact.phone_number).to eq '344234'
+      expect { contact.update!(phone_number: '123456789') }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
     it 'updates phone number when adding valid phone number' do
       contact = create(:contact)
-      contact.update_column(:phone_number, '344234')
-      contact.reload
       expect(contact.update!(phone_number: '+12312312321')).to eq true
       expect(contact.phone_number).to eq '+12312312321'
     end
   end
 
   context 'when email format' do
-    it 'will not throw error for existing invalid email' do
+    it 'will throw error for existing invalid email' do
       contact = create(:contact)
-      contact.update_column(:email, 'ssfdasdf <test@test')
-      contact.reload
-      expect(contact.update!(name: 'test')).to eq true
-      expect(contact.email).to eq 'ssfdasdf <test@test'
+      expect { contact.update!(email: '<2324234234') }.to raise_error(ActiveRecord::RecordInvalid)
     end
 
     it 'updates email when adding valid email' do
       contact = create(:contact)
-      contact.update_column(:email, 'ssfdasdf <test@test')
-      contact.reload
       expect(contact.update!(email: 'test@test.com')).to eq true
       expect(contact.email).to eq 'test@test.com'
     end
   end
-  # rubocop:enable Rails/SkipsModelValidations
 end