Enhancement: Bump Reva

This updates the ownCloud Reva dependency to commit `82c22e954c1cdabb62a14fbe5c1a4ec3e1dabd45`.
Changelog: https://github.com/owncloud/reva/compare/cb98fe521deb55ae339d6ddc4a4b60d6d4da9e14...82c22e954c1cdabb62a14fbe5c1a4ec3e1dabd45

https://github.com/owncloud/ocis/pull/11748
