use dot in favor of double colon (#5165)

Co-authored-by: Oleg Pudeyev <[email protected]>

Author: p-mongo

source/reference/queries.txt

@@ -1785,7 +1785,7 @@ at runtime:
 
   In Mongoid versions 7.3.3 and earlier, there is a bug in ``with_scope``
   where the previous scope is lost after the function returns. Set the
-  ``Mongoid::restore_previous_scope`` global flag to true in order to get the
+  ``Mongoid.restore_previous_scope`` global flag to true in order to get the
   correct functionality.
 
 

source/release-notes/mongoid-7.4.txt

@@ -44,7 +44,7 @@ Previously, ``===`` returned ``true`` for some cases when the equivalent Ruby
 
 .. note::
 
-  In order to get this functionality, the ``Mongoid::triple_equals_uses_is_a``
+  In order to get this functionality, the ``Mongoid.triple_equals_uses_is_a``
   global flag must be set to true. If it is set to false, the ``===`` operator
   will function as it did in Mongoid 7.3.