Merge pull request #36626 from robertomiranda/patch-3

Fix Identation

[ci skip]

activerecord/CHANGELOG.md

 *   Add database_exists? method to connection adapters to check if a database exists.
 
-      *Guilherme Mansur*
+    *Guilherme Mansur*
 
 *   PostgreSQL: Fix GROUP BY with ORDER BY virtual count attribute.