Bump rails from 5.2.4.4 to 5.2.4.5

Bumps [rails](https://github.com/rails/rails) from 5.2.4.4 to 5.2.4.5.
- [Release notes](https://github.com/rails/rails/releases)
- [Commits](https://github.com/rails/rails/compare/v5.2.4.4...v5.2.4.5)

Signed-off-by: dependabot[bot] <support@github.com>

spec/lib/admin_wysiwyg_sanitizer_spec.rb

@@ -5,7 +5,7 @@ describe AdminWYSIWYGSanitizer do
 
   describe "#sanitize" do
     it "allows images" do
-      html = 'Dangerous<img src="/smile.png" alt="Smile" style="width: 10px;"> image'
+      html = 'Dangerous<img src="/smile.png" alt="Smile" style="width:10px;"> image'
       expect(sanitizer.sanitize(html)).to eq(html)
     end