Enable autocorrect for `Lint/EndAlignment` cop

### Summary

This PR changes .rubocop.yml.

Regarding the code using `if ... else ... end`, I think the coding style
that Rails expects is as follows.

```ruby
var = if cond
  a
else
  b
end
```

However, the current .rubocop.yml setting does not offense for the
following code.

```ruby
var = if cond
        a
      else
        b
      end
```

I think that the above code expects offense to be warned.
Moreover, the layout by autocorrect is unnatural.

```ruby
var = if cond
  a
      else
        b
      end
```

This PR adds a setting to .rubocop.yml to make an offense warning and
autocorrect as expected by the coding style.
And this change also fixes `case ... when ... end` together.

Also this PR itself is an example that arranges the layout using
`rubocop -a`.

### Other Information

Autocorrect of `Lint/EndAlignment` cop is `false` by default.
https://github.com/bbatsov/rubocop/blob/v0.51.0/config/default.yml#L1443

This PR changes this value to `true`.

Also this PR has changed it together as it is necessary to enable
`Layout/ElseAlignment` cop to make this behavior.

1 files changed, 2 insertions, 2 deletions

diff --git a/railties/lib/rails/generators/generated_attribute.rb b/railties/lib/rails/generators/generated_attribute.rb
index 2728459968..f7fd30a5fb 100644
--- a/railties/lib/rails/generators/generated_attribute.rb
+++ b/railties/lib/rails/generators/generated_attribute.rb
@@ -75,7 +75,7 @@ module Rails
                         when :date                 then :date_select
                         when :text                 then :text_area
                         when :boolean              then :check_box
-          else
+                        else
                           :text_field
         end
       end
@@ -91,7 +91,7 @@ module Rails
                      when :text                        then "MyText"
                      when :boolean                     then false
                      when :references, :belongs_to     then nil
-          else
+                     else
                        ""
         end
       end