Run rubocop formatting except line length (#23632)

spec/validators/unreserved_username_validator_spec.rb

@@ -11,10 +11,10 @@ RSpec.describe UnreservedUsernameValidator, type: :validator do
 
     let(:validator) { described_class.new }
     let(:account)   { double(username: username, errors: errors) }
-    let(:errors )   { double(add: nil) }
+    let(:errors) { double(add: nil) }
 
     context '@username.blank?' do
-      let(:username)  { nil }
+      let(:username) { nil }
 
       it 'not calls errors.add' do
         expect(errors).not_to have_received(:add).with(:username, any_args)
@@ -22,7 +22,7 @@ RSpec.describe UnreservedUsernameValidator, type: :validator do
     end
 
     context '!@username.blank?' do
-      let(:username)  { 'f' }
+      let(:username) { 'f' }
 
       context 'reserved_username?' do
         let(:reserved_username) { true }