Fixed #23072 -- Added missing formtools test templates in tarball

The lack of this file breaks the test suite.

MANIFEST.in

@@ -23,6 +23,7 @@ recursive-include django/contrib/auth/templates *
 recursive-include django/contrib/auth/tests/templates *
 recursive-include django/contrib/formtools/templates *
 recursive-include django/contrib/formtools/tests/templates *
+recursive-include django/contrib/formtools/tests/wizard/wizardtests/templates *
 recursive-include django/contrib/flatpages/fixtures *
 recursive-include django/contrib/flatpages/tests/templates *
 recursive-include django/contrib/gis/static *