* Migrate claims pallet to pallet attribute macro.

* Trigger CI.

* Update runtime/common/src/claims.rs

Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: Keith Yeung <kungfukeith11@gmail.com>