Apply IndentationWidth rubocop rule

spec/models/legislation/annotation_spec.rb

@@ -1,4 +1,4 @@
- require "rails_helper"
+require "rails_helper"
 
 RSpec.describe Legislation::Annotation, type: :model do
   let(:draft_version) { create(:legislation_draft_version) }

spec/models/legislation/draft_version_spec.rb

@@ -29,7 +29,7 @@ describe Legislation::DraftVersion do
   end
 
   def body_markdown
-<<-BODY_MARKDOWN
+    <<-BODY_MARKDOWN
 # Title 1
 
 Some paragraph.
@@ -50,7 +50,7 @@ BODY_MARKDOWN
   end
 
   def body_html
-<<-BODY_HTML
+    <<-BODY_HTML
 <h1 id="title-1">Title 1</h1>
 
 <p>Some paragraph.</p>
@@ -73,7 +73,7 @@ BODY_HTML
   end
 
   def toc_html
-<<-TOC_HTML
+    <<-TOC_HTML
 <ul>
 <li>
 <a href="#title-1">Title 1</a>