[BUGFIX] Expire path cache when adding new page translation

Previously, adding a new page translation did not clear the path
cache. If a path cache entry already existed for that language
the url was not updated to reflect the new translation. This
change ensures that the path cache is also expired when adding
a new translation.

Change-Id: I1ce5510b1442df13b5cc9d913f66317a61bdf0ea
Resolves: #61881