Enhancement: Update reva to v1.13.1-0.20210917065320-df33e69a6bdc

Updated reva to version v1.13.1-0.20210917065320-df33e69a6bdc
This update includes:

Enhancement [cs3org#reva#2071](https://github.com/cs3org/reva/pull/2071): Implement listing favorites via the dav report API
Enhancement [cs3org#reva#2053](https://github.com/cs3org/reva/pull/2053): Use safer defaults for TLS verification on LDAP connections

https://github.com/owncloud/ocis/pull/2520
