Dumps_v1: Fix a problem with the rsync arguments for sql/xml dumps

The sync tasks use rsync command with two --include arguments followed by an --exclude * argument.

This is intended to select the dump directory for the specific date, as well as the latest directory.

Unfortunately, the previous version only selected the directories themselves, not the contents of the directories as well.

In order to fix this, we add the special wildcard *** which means (from man rsync):

a trailing *** in the pattern is a shorthand that allows you to match a directory and all its contents using a single rule.

Also, there was an repeated '--no-perms' argument. Bug: T397848 *** wildcard pattern meaning