minor #18225 Update rounding_mode.rst.inc (stiteca)

This PR was submitted for the 5.4 branch but it was merged into the 6.2 branch instead.

Discussion
----------

Update rounding_mode.rst.inc

Add PercentType into default \NumberFormatter::ROUND_HALFUP types

Commits
-------

e77ba0e Update rounding_mode.rst.inc

Author: OskarStark

reference/forms/types/options/rounding_mode.rst.inc

@@ -7,7 +7,7 @@ and ``\NumberFormatter::ROUND_HALFUP`` for ``MoneyType`` and ``NumberType``
 * IntegerType
 **default**: ``\NumberFormatter::ROUND_DOWN``
 
-* MoneyType and NumberType
+* MoneyType,  NumberType and PercentType
 **default**: ``\NumberFormatter::ROUND_HALFUP``